A better example of useful-to-developers-software-that-isn't-available on Linux would be prototyping and UI design apps like Sketch, Principle, ProtoPie, Framer

A better example of useful-to-developers-software-that-isn't-available on Linux would be prototyping and UI design apps like Sketch, Principle, ProtoPie, Framer Desktop, and Origami Sudio. There’s a good list here (https://uxtools.co/tools/prototyping https://uxtools.co/tools/prototyping). I’d also argue that the Adobe Creative Suite is a great grab bag of tools generally useful in communication and digital asset preparation crossing the gamut from bitmap, vector, video, and motion graphics, all of which have uses when working with software, especially user-facing applications.