Problems with SketchUp 2022

[endlessfix]

Extensions do not transfer between major versions of SU. Reinstall them from within SU 22.

Extensions wiped out by Pro 2022 upgrade

I just installed Pro 2022, and discovered all my extensions, I had spent the past year installing, were gone. I notice this was an unresolved discussion a while back, which involved Windows 10. I am now on Windows 11 (and not one bit happy about it). Does anyone have a clue, or do I just start over installing what was deleted? I would also like to mention that, while I have not spent much time with the new upgrade yet, so far I can see no meaningful change over Pro 2021.