I like mint, never really have to think about it. My ageing workstation is on 24/7 (arrgh) and Plex works just fine. Firefox is fine, google docs or libre office are fine. Things just work.
The one problem I do have is it goes mad and needs a reboot if the monitors go to sleep while one of them is orientated to portrait. So I just switched off sleep and turn them off manually.
My Mom has been running Mint for over a decade now and I rarely have to remote in and help her with anything. If it passes the works for my Mom test, I think it should work for most people.
I'd say unless you're an advanced user looking for something specific, it's between Ununtu and Red Hat, and even then I'd argue that Red Hat is more for business and Ubuntu is great for home / casual use, but they're both excellent!