If you want cutting edge, don’t use Mint. But that’s not their focus at all. Mint is for people who just want their computer to work with minimal hassle.

These don’t seem like competing needs. When I think “just work with minimal hassle”, I don’t think “I need to restrict myself to outdated hardware”.

I’m perfectly happy running old packages in general. I’m still on Plasma 5, and it works just as well as it did last year. But that’s a matter of features, not compatibility. Old is fine; broken is not.

Google has a history of sabotaging Firefox in YouTube, because they can. This is a YouTube problem more than a Firefox problem. I know that’s not really helpful for you as an end user, but I want to mention it because really, Google deserves the blame.