This is just my opinion on this, so it’s not a rule of course, but I think it should be and with the recent release of macOS Monterey and subsequent bug/error posts, I think it’s worth bringing to attention now. I’m sure there are some here who do the same as I, but I see the posts all the time in forums, of people who have broken systems because they upgraded their OS, so this is for them.
Unless you bought a newer computer and can’t downgrade the OS from the more recent versions, I think it’s wise to stay on at least one previous OS version from the current when possible. This is especially important if you run legacy software and hardware.
This helps developers catch up first. Even a huge company like Avid is slow AF to make their software compatible. They’re a bad example, but there are Devs out there that are smaller, that try, but just naturally have a harder time rolling out updates. This isn’t that important and could be argued in another way…
But the main takeaway is YOUR music production setup and it’s stability, so using an OS that you know is staying rock-solid for you, is super important. I use macOS High Sierra 10.13.6. It’s now 4 versions behind Apple’s latest, but everything works 99% of the time (minus BFD3 of course), so I’m content with that.
My suggestion, is if you really need to have and experience the latest OS and if you have the storage, make a separate partition or container and install it on that. Most modern computers can boot super fast, so having to restart shouldn’t be a huge deal for most. Or, if you have a desktop for music production and say a laptop, then use that as your daily driver with an up-to-date OS and keep that stuff separate from your main music rig. This also is an advantage because neither system is getting bogged down with stuff it doesn’t need and they will be more efficient. I ran macOS Mavericks 10.9.5 and Pro Tools 11 for like 5 or 6 years and it was great. I’ve been using two separate OSs/computers for years and that has saved me a lot of headaches.
So that’s my rant. Take it for what it is. Try it out, don’t try it out… it’s just my advice and what I’ve learned.
TL;DR: Don’t use the latest and greatest OS for your music production rig if you can help it. You’ll spend more time making music.