Yeah I definitely don’t want to sound negative on Flatpaks or on Mint, though.

Flatpaks are my preferred way of packaging apps, and while I’ve moved on from Mint for my own usecase (I like Gnome so Fedora made more sense to me), I always install Mint on other people’s old machines because it just works, is similar to Windows UX, doesn’t require you to be on top of updates very much, and has pretty sane defaults.