This is very true and applies in a lot of ways e.g. Building an application to try to take customers away from an incumbent. I've tried to use Gimp and LibreOf

This is very true and applies in a lot of ways e.g. Building an application to try to take customers away from an incumbent. I've tried to use Gimp and LibreOffice, but they both are close enough to Photoshop and MS Office that I can't ever learn their "dialects", which are very close to the originals', but not quite. Instead, I constantly feel like I'm fighting them. When I moved to Pages instead, I was forced to learn a whole new language, and so that's what happens. No remapping, just mapping.