Flightless Mango has some comparisons for ‘newer’ games, in case you were concerned about performance. Short answer is that you might expect to lose a percent or two on frames vs. Windows, which is not really worth fretting over. Some games are worse, usually until the underlying issue is fixed. Some games are substantially better - usually Vulkan-based ones. The additional Linux efficiency is real, when it doesn’t have to translate all the DirectX calls.