diff --git a/installing/install_config/installation-types.adoc b/installing/install_config/installation-types.adoc
index 8c650ea36278..fe29c726acaa 100644
--- a/installing/install_config/installation-types.adoc
+++ b/installing/install_config/installation-types.adoc
@@ -6,9 +6,24 @@ toc::[]
 
 You can perform different types of installations on different platforms.
 
+.Approach 1
 [NOTE]
 ====
-Not all installation options are currently available for all platforms, as shown in the following tables.
+Not all installation types are supported for all platforms, and not all supported installation types are documented.
+
+In the following table, installation types that are supported and documented are marked with a hyperlinked `X` character.
+
+Installation types that are supported, but not documented, have a check mark.
+====
+
+.Approach 2
+[NOTE]
+====
+Not all installation types are supported for all platforms, and not all supported installation types are documented.
+
+In the following table, installation types that are supported and documented are marked with a hyperlinked `X` character.
+
+Other platform and installation methods are possible, but they are not documented and may not be supported.
 ====
 
 .Installer-provisioned infrastructure options
@@ -49,11 +64,11 @@ Not all installation options are currently available for all platforms, as shown
 |
 
 |Restricted network
-|
-|
-|
+|✓
+|✓
+|✓
 |xref:../../installing/installing_openstack/installing-openstack-installer-restricted.adoc#installing-openstack-installer-restricted[X]
-|
+|✓
 |
 |
 |
@@ -126,7 +141,7 @@ Not all installation options are currently available for all platforms, as shown
 |xref:../../installing/installing_aws/installing-restricted-networks-aws.adoc#installing-restricted-networks-aws[X]
 |
 |xref:../../installing/installing_gcp/installing-restricted-networks-gcp.adoc#installing-restricted-networks-gcp[X]
-|
+|✓
 |
 |xref:../../installing/installing_bare_metal/installing-restricted-networks-bare-metal.adoc#installing-restricted-networks-bare-metal[X]
 |xref:../../installing/installing_vsphere/installing-restricted-networks-vsphere.adoc#installing-restricted-networks-vsphere[X]