Anything sung by you?

Tell us YOU know nothing about running Linux, especially Mint, which is based on Ubuntu LTS releases, meaning it won’t get gimp 3.0 until the next major release, and so a flatpak, snap, or PPA with an unreliable release cadence are the only ways to get it before then unless you compile it yourself. Seriously dude, pull your head out.

Tell us you don’t know what a flatpak is without telling us you don’t know what a flatpak is.