And sure, I'll do whatever I want, or whatever my limited time allows me to do. And if that means supporting only the browser with major quota (like games running only on Windows, because that's what has major quota; using your argument), so be it.
I see you must not have played a lot of games recently – granted, you will notice some problems form time to time, but they are rather the exception (and often fixed by post-launch drivers updates) than the norm.
> Also, most of the games require at least XYZ version of DirectX
Also, most of webapps require at least version XYZ of browser ABC. What is your point exactly, that developers use new features of APIs/libraries?
> that's what has major quota; using your argument
No it's not my argument. In my argument, Windows + DirectX is a standard akin to the web standards, and this standard is implemented by multiple controller makers, GPU founders, screen producers, etc.
Thankfully, I can play Il-2 or Rainbow 6 as well with my GTX1070 and ASUS than my friend with is Vega GPU & LG screen.
Exactly. We use whatever new standard makes our live easier. If Firefox or Edge don't support that standard (because they are always lagging behind), there's not much we can do (except going the hard way and implementing workarounds for each browser, which is a no-no most of the time, because of lack of manpower/time). "My website requires Flex support" is pretty much the equivalent of "My game requires DirectX 11".