I’ve been windows-free for 10 years. It’s really not so hard if you use a common distro like Ubuntu. Yes there are occasional glitches but, I’ve had to install windows 8 for my mom recently, and windows update was broken out of the box...
I hate this "argument". I am running Ubuntu myself for half a year now but there is no chance to get Adobe Creative Suite/Cloud to run smoothly on Ubuntu. You will absolutely need macOS or Windows for that.
And lots of people need professional applications like those to earn money. Not everybody can be happy and good to go with $texteditor and a bash.
If you absolutely need an application that isn't available on Linux, maybe Linux isn't right for you, at least not all the time. But there are tons of applications that are available on Linux. If you're not dead-set on Photoshop for example, GIMP is there. If you don't specifically need Acid, Ardour exists.
And plenty of people aren't musicians or artists and can get by pretty well with just a web browser, hence the popularity of Chromebooks. Browsers work just as well on Linux as on Windows or MacOS.
Glad if it works for you, because you might not need some specialized software, but it is not an universal rule and people tend to forget that and treat non Windows-free users like they are too stupid to see the alternatives.
There are just no good alternatives for media professionals when it comes to things like Photoshop, Illustrator, Indesign. Other solutions lack compatibility or generate quirky output. Sometimes you need the real deal and it's no question of "liking" Windows.
This was my initial point. It's not so easy as "if you don't trust Microsoft you shouldn't use Windows." If that's an option, great. But it often isn't an option.