* Sometimes R# appears to be disabled. It doesn't respond to keyboard commands and doesn't the show light bulb icon. Closing then reopening the affected file usually brings it back.
* I had one case where I opened a solution then opened program.cs and VS2022 just removed itself from the desktop. When I restarted VS it suggested disable R#.
* R# seems unable to run unit tests. It threw an exception that I've reported by the exception tool.
Anyway I'm going back to vs2019 now. I'll try vs2022/R# at some future date.