You can use party voice chat on your phone (Xbox app) while playing the game on your Linux PC.
Most distros can even connect to your phone via Bluetooth and you can mix the audio+microphone into your PC headset.
I’ve done this before in KDE Plasma and it worked seamlessly.
More users.
But seriously, more ports of and/or viable alternatives to professional applications. It’s the top reason people stick with Windows—even when they don’t like it.