I don't know if my experience is typical , I upgraded to Big Sur some time ago and it ran without any issues on my 2017 macbook pro. The same cannot be said for Monterey, I updated at the end of November and have just had to reinstall for a third time due to small issues like the status-bar disappears or the program dock fails to load. No amount of restarting or winding back in time-machine solves the issue. When it works, it is quite good, but the changes are mostly visual.
I am beginning to wish I had not been so eager to update.