[Nullabillity]

As Ubuntu gradually snapifies more and more stuff, Mint is either going to start falling behind or have to redo Ubuntu's packages (reducing any benefits of the Ubuntu heritage...).

Mint might be an OK stopgap, but I wouldn't call it a long-term solution to Ubuntu's snap infestation. Just like you won't get a good OS by playing whack-a-mole with the various workarounds you have to do to avoid Windows' latest user-hostile bullshit.

[opan]

Mint also has a Debian Edition, and it could just become the main one.

[pantalaimon]

Ubuntu still gets most packages from Debian, so as long as they don't switch to Snap, everything should be fine.