Any seen this when clicking on a join meeting request within outlook with new MS teams 2.1. Selecting Microsoft Teams (Teams 2.1) works as expected but old classic teams doesnt as it doesnt exist on this image. The error is probaly due to moving from a 2016 image with old classic teams to a new 2022 image with ms teams 2.1 with the same Fslogix profile container being used on the new image (I did advise to use new profiles). I presume i have to delete some reg keys within the users profile ?? When searching for c:\program files (x86)\micrsoft\teams\current\teams.exe %1 in the users registry it looks like hkcu\software\classes\Teamsurl and hkcu\software\classes\ms-teams are the culprits

I think that may help. https://www.koetzingit.de/index.php/en/blog-en/238-procedure-for-setting-up-the-new-microsoft-teams-on-the-windows-2022-platform

all this gunk cheers will stick it in a user logon script so it clears it before they launch ms teams 2.1 on the new image

I had that same issue a while back for user moving from Classic to New on and 2019 image, then onto 2022. Probably a smarter way but I just set a logon script to remove the Classic shortcuts.