You might not be wrong, but yelling at people for accepting conveniences that most don't even understand or care about, seems a bit pointless to me. Why even stop at document formats? Why not outrage over their choice of Windows itself?
What good do you think this does? I'm genuinely curious.
> Why not outrage over their choice of Windows itself?
Because it doesn't necessarily affect anyone. Using Windows ipso facto doesn't mean you will send someone a file they can't read without a Microsoft program.
I have two Windows machines in my home; they have LibreOffice on them, as well as Firefox.
Well, according to StatsCounter, Linux now accounts for 5% of desktop users. :-)
ChromeOS another 2.7% and macOS around 24%.
edit: If I were to guess, Valve/Steam is solely responsible for at least 1 of those 5%.