So my personal anecdote also involves mint - I've set one up for someone years ago(probably around 2013-2014) and you're right, it had no issues. However, when I came over to visit last year I wanted to do some maintenance, so "apt-get update" and "apt-get upgrade" would be the start. Nope, turns out that the update servers for that version of Mint have been switched off long time ago and none of the links resolve anymore. Upgrading the apt server list just resulted in hundreds of errors when actually trying to upgrade the system. At this point I stopped, worried that I'm just going to break everything.
After that, I had a realization - yes, the system ran for 4 years without any maintenance, but it also received no updates and no patches whatsoever during that time, because linux does not do that by default(or at least Mint didn't). And then the only issues my windows-using family have is 90% of the time due to....windows updates. Things are not where they used to be, some application changed so it's now different, they had something open and the computer restarted itself....the usual. And while that is a problem....at least their machines are always patched and up to date. That Mint installation was running in the same state that it was in the day I set it up, and after just few years it couldn't even be updated any more(to my best effort). That's pretty bad too.
After that, I had a realization - yes, the system ran for 4 years without any maintenance, but it also received no updates and no patches whatsoever during that time, because linux does not do that by default(or at least Mint didn't). And then the only issues my windows-using family have is 90% of the time due to....windows updates. Things are not where they used to be, some application changed so it's now different, they had something open and the computer restarted itself....the usual. And while that is a problem....at least their machines are always patched and up to date. That Mint installation was running in the same state that it was in the day I set it up, and after just few years it couldn't even be updated any more(to my best effort). That's pretty bad too.