Due to a total lack of money at this point I am heavily dependant on freeware.
Krita is a lovely piece of software but feels more suited to digital art and light animation rather than dmp but that’s based on a rather time limited experience.
Just to clarify, I almost exclusively use a Raspberry Pi 3B at the moment, including for the recent competition that MP held last month. Because of the limitations (mainly the fixed limit of 1GB RAM and the range of available software for the newest version of the Raspbian OS) I can’t run Krita or Blender (yet!).
I’m using GIMP for all my work and find it copes with everything that I need to do at the moment but again I need to spend a LOT more time on it to fully utilise the full abilities of it. It does crash and lockup frequently as the latest version if unavailable on the RPi and the gross shortage of RAM I currently have available. I hope to get the 4GB version of RPi4 in the near future so that will help.
GIMP can be a little awkward to use, especially if you are used to Windows and/or Photoshop, but by the time GIMP 3.0 comes out (don’t hold your breath on that as I don’t imagine that it will be for a least a year or two), Glimpse will be released. This is an offshoot of GIMP to get around the issue linked to the name and will also include a much more user friendly UI.
I may come back to this topic at a later date when I’ve had more experience with some of the programs.