I saw that Sweetwater has published guides for the new Operating Systems and Audio work. In addition to describing what we should consider before upgrading they also list the compatibility status of lots of products (which they say they will update regularly). Seems like it could be useful.
PC
https://www.sweetwater.com/sweetcare/articles/windows-11-compatibility-guide/#cubase
Mac
https://www.sweetwater.com/sweetcare/articles/macos-12-monterey-compatibility-guide/