diff --git a/crates/oxc_linter/src/rules/typescript/no_wrapper_object_types.rs b/crates/oxc_linter/src/rules/typescript/no_wrapper_object_types.rs
index 922fba7d5e7e4..9e6428fd27801 100644
--- a/crates/oxc_linter/src/rules/typescript/no_wrapper_object_types.rs
+++ b/crates/oxc_linter/src/rules/typescript/no_wrapper_object_types.rs
@@ -9,8 +9,13 @@ use oxc_span::Span;
 
 use crate::{AstNode, context::LintContext, rule::Rule};
 
-fn no_wrapper_object_types(span: Span) -> OxcDiagnostic {
-    OxcDiagnostic::warn("Do not use wrapper object types.").with_label(span)
+fn no_wrapper_object_types(ident_name: &str, span: Span) -> OxcDiagnostic {
+    OxcDiagnostic::warn("Do not use wrapper object types.")
+        .with_note(format!(
+            "`{ident_name}` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `{}` for values, and in `extends`/`implements` use an interface/object shape instead.",
+            ident_name.cow_to_ascii_lowercase()
+        ))
+        .with_label(span)
 }
 
 #[derive(Debug, Default, Clone)]
@@ -90,11 +95,11 @@ impl Rule for NoWrapperObjectTypes {
             let can_fix = matches!(node.kind(), AstKind::TSTypeReference(_));
 
             if can_fix {
-                ctx.diagnostic_with_fix(no_wrapper_object_types(ident_span), |fixer| {
+                ctx.diagnostic_with_fix(no_wrapper_object_types(ident_name, ident_span), |fixer| {
                     fixer.replace(ident_span, ident_name.cow_to_ascii_lowercase().to_string())
                 });
             } else {
-                ctx.diagnostic(no_wrapper_object_types(ident_span));
+                ctx.diagnostic(no_wrapper_object_types(ident_name, ident_span));
             }
         }
     }
diff --git a/crates/oxc_linter/src/snapshots/typescript_no_wrapper_object_types.snap b/crates/oxc_linter/src/snapshots/typescript_no_wrapper_object_types.snap
index fb51ea5618cd8..d3ece4c44d14a 100644
--- a/crates/oxc_linter/src/snapshots/typescript_no_wrapper_object_types.snap
+++ b/crates/oxc_linter/src/snapshots/typescript_no_wrapper_object_types.snap
@@ -8,6 +8,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `BigInt` with `bigint`.
+  note: `BigInt` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `bigint` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -15,6 +16,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ───────
    ╰────
   help: Replace `Boolean` with `boolean`.
+  note: `Boolean` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `boolean` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -22,6 +24,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -29,6 +32,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `Object` with `object`.
+  note: `Object` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `object` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -36,6 +40,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `String` with `string`.
+  note: `String` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `string` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -43,6 +48,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `Symbol` with `symbol`.
+  note: `Symbol` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `symbol` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:12]
@@ -50,6 +56,7 @@ source: crates/oxc_linter/src/tester.rs
    ·            ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:21]
@@ -57,6 +64,7 @@ source: crates/oxc_linter/src/tester.rs
    ·                     ──────
    ╰────
   help: Replace `Symbol` with `symbol`.
+  note: `Symbol` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `symbol` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:24]
@@ -64,6 +72,7 @@ source: crates/oxc_linter/src/tester.rs
    ·                        ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:6]
@@ -71,6 +80,7 @@ source: crates/oxc_linter/src/tester.rs
    ·      ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:15]
@@ -78,6 +88,7 @@ source: crates/oxc_linter/src/tester.rs
    ·               ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:16]
@@ -85,18 +96,21 @@ source: crates/oxc_linter/src/tester.rs
    ·                ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:26]
  1 │ class MyClass implements Number {}
    ·                          ──────
    ╰────
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:31]
  1 │ interface MyInterface extends Number {}
    ·                               ──────
    ╰────
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:15]
@@ -104,6 +118,7 @@ source: crates/oxc_linter/src/tester.rs
    ·               ──────
    ╰────
   help: Replace `Number` with `number`.
+  note: `Number` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `number` for values, and in `extends`/`implements` use an interface/object shape instead.
 
   ⚠ typescript-eslint(no-wrapper-object-types): Do not use wrapper object types.
    ╭─[no_wrapper_object_types.tsx:1:24]
@@ -111,3 +126,4 @@ source: crates/oxc_linter/src/tester.rs
    ·                        ──────
    ╰────
   help: Replace `String` with `string`.
+  note: `String` is a boxed object type, not a primitive. Boxed types have object semantics (identity/truthiness) that can be surprising. Use `string` for values, and in `extends`/`implements` use an interface/object shape instead.