I’ve had no real issues on Monterey since upgrading. It’s going well except for one odd aspect. Startup times are really long, like ten minutes long. I had noticed this at installation, put this down to the initial install, which took a long time as well. I have a very fast external SSD for my startup drive.
I restarted today after the first brownout of the winter and lo, this took ten minutes as well. Anyone else having issues like this?