I'm starting to set up a testing environment for macOS applications, and I want to be able to rollback to different versions of the OS (all machines can be scrubbed, so I don't worry about preserving user data).
I noticed that I can download the latest versions of Ventura and Sonoma from the Mac App Store, but not past versions of Ventura and Sonoma
Is there a way to download earlier versions of these macOSes (or maybe even earlier ones like Monterey)?
Alternatively, if I regularly start downloading macOS installers from the Mac App Store and maintain my own local copies so I can use these to rollback to these versions, do I need to download a version for each hardware?
For example, I currently have an M1 Mac mini, an M2 Mac mini, and an M1 Mac Studio. Do I need to download different installers for each of these hardware platforms?