I personally prefer Krita to Gimp, otherwise my real issues with Linux being:

• Lack of pro audio support. Sure, a lot of open source plugins are available on Linux, but only 1 usable DAW (Ardour), and even that has it's own "issues" (de facto paid, if you don't want to wrestle with exact compiler and make versions the devs won't tell you).
• X11 is kind of dated, while Wayland is still not up to the task.
• GNOME devs. After all the sabotage, probably done in order to force people to use GTK and their UX design sensibilities, they should be banned from any Wayland protocol discussion.
• Elitist users. They'll scream at you online for using a normal text editor instead of VIM, they want you to write little automated scripts for GDB instead of using something with a normal GUI, etc.