Yeah, Pinta is currently what I’m using as a replacement. It’s more or less what I need, but it’s not perfect and the UI is difficult to navigate and leaves a lot to be desired (though tbf that might be my paint.net muscle memory fighting me.)
I’ve not used paint.net so this might be completely off the mark, but Pinta is a good little paint program which might be a reasonable alternative.
Nelots@piefed.zip 1 week ago
Delascas@feddit.uk 1 week ago
Second vote for Pinta. About the closest thing to paint.net there is for a Linux desktop . . .