There is no better solution.

For Mac - Apple has to make gaming a bigger priority, and that's clearly not going to happen. A ~$1000 upgradable Apple machine with a powerful graphics card that can run the latest games is a pipe dream.

For Linux - It's the same problem as building any software for Linux that caters to the non-server non-developer segment. There just isn't enough of a business justification.

Honestly, recent Macs are running contemporary titles more than well enough. Not everyone cares about turning the graphics sliders up. On Windows or otherwise. I've been playing Deus Ex: Mankind Divided just fine lately, and Overwatch works well if I boot Windows, for example. Most MMOs and popular "e-sports titles" (pretty much the core of PC gaming, by numbers) like Counter-Strike, the MOBAs and such are all there on the Mac side.

Most AAA games are designed with the trash hardware of consoles in mind, so laptops with more powerful GPUs handle them just fine. Apple's desktop offerings are abominable in terms of value and sticker price, but they pretty much own the non-Walmart-quality laptop market...

I wouldn't consider Overwatch and Deus Ex contemporary titles, they both released in 2016.

Acctually there were recently strong rumors Apple is going to do just that. Makes sense that Apple sees the growing gaming market and wants to get in on it. Them entering the market would be the incentive devs need to make their games work for Mac (and hopefully therefore Linux)

Dedicated consoles. The Nintendo Switch runs Rocket League just fine.

Once it's on there, you don't really have to worry about constant breaking changes from the operating system changing its audio subsystem or weird graphics drivers.

The NVidia Shield runs it beautifully as well. (Same Tegra chip as the Switch).