Earlier quoted context omitted.
This. Paint.NET is what I'm missing on my Mac so much.
Paint.Net is good, indeed. Let Krita be your new friend. https://krita.org/en/
I use four graphics tools in Linux.
1) Inkscape (Vector paint program) I also use it on Windows though I have a Adobe license
2) Gimp (My go to raster image editor)
3) Krita my go to paint program and not really for raster image editing
4) Aftershot Pro - My raw image and editing tool for quick photo edits
Krita is more comparable to Corel Paint then to Photoshop or Gimp.