If I sell on Windows (I do) and Mac (I do) then I have to support a certain range of OS versions and ongoing OS releases - even if that means (for example) I have to figure out how to 'notarise' a Mac executable so that a user doesn't have a big scary Security Warning pop-up. Not ideal, but fine. The challenge with Linux is that I would have to communicate against expectations - that I would have to make it clear that when I 'support Linux' it looks different to the support for Windows or Mac. I do genuinely think that 99% of Linux people get this, it's just the 1% that's maybe less forgiving of different standards.
For me, just personally and selfishly, passing the buck to Photon or Wine is an easier sell for my business.