

Fedora will get you the most stock Linux environment without all the caveats, and it’s eash to switch from KDE to Gnome or whatever you want without fuss.
Mint is fine-ish, but has caveats when looking for support online.
I no longer recommend Ubuntu at all.
Mint caveats are that it’s Mint. Yes, most solutions for Ubuntu will work with Mint, but it has Cinnamon for its DE, whereas the bulk of all Linux users are on KDE or Gnome, so that puts this new user at a disadvantage due to that simple difference.
Canonical just keeps making poor decisions with Ubuntu, and can’t be trusted to keep putting the user first. Snaps, data/telemetry collection, attempting to shove ads into desktops, disengaging with the community, and all these subtle package shifts away from open community solutions to Canonical solutions.