... so far, everything's working just fine. Tested:
Lightroom 6 stand-alone
RawTherapee 5.8
Darktable 3.8.0
GIMP 2.10.30
Pentax DCU 5.9.3
... and a bunch of other photography-related apps...
All working as expected
Boot-up time on my Lenovo Legion 5 17IMH05H seems just ever-so-slightly longer than with Windows 10, but once logged in the OS feels a bit snappier than 10. Web browsing, in particular, feels more responsive... I don't think I'm imagining it; I was fully prepared to dislike it and revert to Win10 if necessary.
My laptop is set up for dual boot with Windows and Ubuntu MATE 20.04 LTS, and I still prefer using the latter much of the time... but so far, Windows 11 seems very nice, and very logical to use. I rather like it