Comment by 1bpp
With older Apple hardware you can usually find a working OS image, but Apple specifically is very strict with minimum OS versions for apps and deprecating APIs so that older iOS and macOS versions end up unable to install any software that hasn't had an older version archived somewhere, even if there's no real reason it shouldn't run on the hardware. You can only get older compatible versions of apps in the App Store if you happened to have purchased them before, again for no real reason other than inconvenience
> that older iOS and macOS versions end up unable to install any software that hasn't had an older version archived somewhere
iOS, sure. After a certain point, you need to be fine with simple functionality (but, I’ll add, more than adequate for most users, which means someone else could find use and value for what you treat as junk).
But macOS? What software? Everything I’m thinking of is graphics adjacent and significantly benefits from faster hardware. For almost everything else, a browser suffices.