Porting to linux isn't worth it.
Cause most of the people who would switch are existing customers. And with the CC model it is never going to happen
If anyone from Adobe is reading this, I would use CC with subscription on linux and advocate for licenses in my whole office if it was an option
Cheers
Aside from that, their code base is somewhat quirky, which would definitely increase the cost of porting
I look forward to the day when Krita or GIMP’s sole purpose for existing isn't Adobe dug their own hole.