I'll take compatible.

Most people game on windows. It's monolithic nature also means that they will mostly encounter the same bugs.

Linux has a wider base of functionality. A bug might only show up on Debian, not Ubuntu.

End result, they spend 60% of their effort solving bugs, for 2% of their base. That's not cost viable.

Compatibility means they just have to focus on 1 base of code. All we ask is that they don't actively break the compatibility. This is far less effort, and a lot easier to sell to the bean counters.

Once Linux has a decent share, we can work on better universal standards. We likely need at least 10% to even get a chance there.