I use Arch, but you can’t go wrong with Plasma + Debian. Ubuntu has weird bugs which keeps me from recommending it. I wish Mint still had a Plasma edition. endeavouros is Arch with a user-friendly installer, so that’s an option as well. CachyOS is great too. Mint is good but Cinnamon doesn’t support HDR which keeps me from recommending it to anyone using an HDR display. Debian is probably best seeing as you are used to Mint.
I use Arch, but you can’t go wrong with Plasma + Debian. Ubuntu has weird bugs which keeps me from recommending it. I wish Mint still had a Plasma edition. endeavouros is Arch with a user-friendly installer, so that’s an option as well. CachyOS is great too. Mint is good but Cinnamon doesn’t support HDR which keeps me from recommending it to anyone using an HDR display. Debian is probably best seeing as you are used to Mint.