[Announcement] If you use vim-vsnip-integ with nvim-lsp, You must add snippetSupport=true by your self.

[hrsh7th]

No description provided.

[hrsh7th]

hrsh7th/vim-vsnip#140

[jandamm]

Even with using this snippetSupport=true I don't get tabstops using nvim-lsp.

This is how it looks with LSC (how I'd expect it to work):

This is how it looks with nvim-lsp:

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Edit:
Setting capabilities = { textDocument = { completion = { completionItem = { snippetSupport = true } } } } as well fixed this issue for me 👍