Jim is an editor who bought an iMac Pro a few years ago. It wants him to upgrade to macOS Monterey. But he's worried about it because he upgraded to Catalina and it would crash all the time. Leo says to try Monterey. Just do it when there's nothing due. He can first use SuperDuper to make a bootable, external copy of the drive, so he can reboot to just in case. Then try upgrading and see what happens. If it doesn't work right, he can downgrade back to Mojave. And Monterey opens up many advanced features in Adobe that he can't do with Mojave.
So make a bootable external backup with SuperDuper first, then run the upgrade.