Maybe Apple to some extent, but Linux just isn't mainstream or mature enough to replace a Windows OS. There are some who like the Mac OS, even prefer it, but again, it has some way to catch up with Windows 10 in terms of usability and wouldn't be considered by the majority of PC users. Not only that, Apple has been removing apps from its OS as well as hard coding the UI so it cannot be altered.
Nope, I don't see too many jumping ship.... or more succinctly put, jumping from the frying pan into the fire.