Photo and video editors are pretty shit on Linux.
GIMP may be full featured, but the user experience is fucking retarded and PhotoPea being the only thing addressing good user design while being "freemium advertising-supported web browser software written in javascript" is absolutely terrifying, Adolf Hitler please save me, I'm not using that shit.
They did good with Krita, it's for drawfags though and it doesn't have as many filters and tricks as The GIMP.
Krita's filters and 'filter layers' leave a lot to be desired, specially with the new non-destructive filters on GIMP 3.
They at least have a 'Smart Patch Tool', reminiscent of content-aware patching, but no content-aware scaling, : - (.
Krita also has a different way to "mask layers", you group(ctrl+g) them first then the 'inherit alpha α' starts working, it's confusing for people coming from other software like Photoshop, but once you get the hang of it, I thought it was genius and very dynamic and flexible.
I later tried to do some masking on GIMP and it was fucking annoying versus what Krita came up with, GIMP copied how Photoshop and others do it, which I find shittier.
Just boot up Krita and group some layers, draw a base shape on the bottom layer and then some colors on the upper layers, you can stack as many as you want, play around with each of their 'Blending Mode' (Normal, Multiply, etc.), then toggle the 'inherit alpha α' on them (or just on a group which holds all of them).
Did they come up with a better way of masking?