Linux Mint is hands down the most stable linux distro out there and has been for years. zero tinkering needed. everything just runs no questions asked.
My only grief with Mint is the most recent update where they changed the software centee and now it’s slowed to a crawl. Why they would do this is anyones guess.
I’m recommending MX until such time that Mint sort their crap out - unfortunately I doubt they will, seeing as this change of software center was to resolve some other issues they (but not is end users) though they had.
MX is basically debian but with a lot of improvements. Sure it might have a bit of a learning curve for those primarily used to Ubuntu based systems, but it beats running any of the other Ubuntu distros by miles since they all struggle with the crap Ubuntu puts on top of Debian.
Manjaro is another great option if you don’t want to deal with debian based stuff, and KDE is the default DE with most stuff under reasonable control. You can also use all the Arch resources if you ever run into trouble so it’s a lot less of a headache than what I’ve experienced running OpenSUSE (i want to love OpenSUSE but I just can’t).