Try Mypaint or Krita as alternatives to Gimp and please do not bad-mouth FOSS painting tools if you do not know them.
This is not the only objective measure of UX.
BTW you replied to a comment that suggested looking at alternatives to Gimp...
The GIMP I use because I'm used to it, but I find the interface a little annoying.
Even if someone doesn't like Inkscape, the issue of Inkscape's interface is completely different from the issue of The Gimp's interface.