Now, that last point seems to be a "of the time", right?
But it turns out for when some artists tried to use is, it's still an issue.
Like, I have issues with Krita and even THAT software has expand area for the fill bucket. Like, on god- =A=;;;
GIMP has a lot of issues that I don't think starting (or even continuing) your art journey with that would be a good idea.
I'm going to reiterate: FireAlpaca is a much better start to your art journey. (If you own a PC.)