I think, realistically, anything up to 10 years ago can run most distros. Some better than others, of course, because of the DE load.

I’ve got kde neon on a 2013 MacBook Air and it’s great. I also have put Ubuntu budgie and SDesk on an old HP Chromebook with 4gb of ram. And, obviously the 16gb disk is crippling, but it runs better than expected haha.