Lol, Epic cut Linux support when it bought Rocket League.
But you are right, no one even tries. Everyone wants to have Valve’s income, but no one wants to do the legwork of innovation that Valve does. If someone would compete with Valve where they don’t already have a massive foothold, there might be some better results. For example, Linux. If any of these funding-gorged companies were to put serious money into competing with Valve in the Linux space, it’d be a real competition. Then you could leverage your stake in that to compete in different sectors. But the Linux market is small, and averse to paying for things (userwise) so not much to gain. But Valve understands that if gaming parity with Windows happens, then it will have a compounding effect. It would unshackle the PC market from Microsoft. It would make spending funding on a gaming device that DOESN’T have to have Windows involved a much more appealing prospect. Hell, the phone gaming market. No need for these re-skinned Skinner boxes when you can have the actual PC version on your phone. Whole new market, right there.
The companies that innovate tend to lead. And those who follow the coin and not the music, do not.