This also happened to another user:
but it seems @Andy_Droid just came and went, not providing any background info.
Possibly not a bug introduced by nb191 on Feb 17th 2023, given his post was in January, so you may be on the right track with Windows 11, though we may have expected to hear from others ?
Have you tried loading up AI2 in an incognito window, which would not load extensions / other things ?
Or in Firefox ?
Also try using code server if using main AI2, or vice-versa ?