So, without looking at all the latest messages; considering all factors such as HD4000 graphics card compatibility, among other drivers on an unsupported machine; if I'm running Big Sur 11.6.1 perfectly fine, is there any reason to switch my unsupported mid 2012 A1278 Macbook Pro with 16gb RAM, a 500gb SSD drive and HD4000 graphics card to macOS Monterey? Every-time I've gone to install the post volume patch so far, it says my machine doesn't require it. I know Apple dropped support for the HD4000 graphics card in Monterey, but has there been a fix for that that makes the entire OS worth upgrading to? My concern is only that I have everything "configured" 😉 just the way I want, and if I were to install Monterey and didn't like it, the only way I know to downgrade is to wipe my OS from Recovery mode and reinstall the OS. Or, Is this where a Time Machine Backup would come into play?