I got Linux and looking for a program that's similar to

Kirita?

>>2849239
you literally only 2 (TWO) options:
>MyPaint
mypaint is very polished and novel but it is literally just a toy. Good for doodling and experimenting when you're feeling down.
>Krita
krita is not very polished but it works like most other drawing programs, like any other program it also has it's own quirks. also there's animation tools if you are into it.

The gimp is not worth mentioning.

>>2849247
Krita has come a long way, I'd put it above the vast majority of other drawing applications.

Main thing it's laking is vector drawing for lineart.

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89KB, 1029x564px

>>2849239
AZpainter