typescript.experimental.expandableHover: Unknown Configuration Setting

[Thiht]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.108.1
• OS Version: Darwin arm64 25.2.0

Steps to Reproduce:

1. Try to add "typescript.experimental.expandableHover": true to the settings

2. 

I disabled all my extensions, and my TypeScript version (used by VSCode) is 5.9.3. Is this setting not available anymore?

[maxine-yx]

This is a test comment for GitHub batch 3 tool exploration. Testing the github-add_issue_comment tool.

[mjbvz]

This feature was finalized. It's by default now and the experimental setting was removed