For gamers, Apple isn't an option.
Hat tip to any Linux switchers. I hope you get what you need out of it.
If you want to try out games on linux and make it easy, try out Lutris.
Apple with its ARM CPUs and requirement for Metal isn't there really.
Never tried LoL, but dx12 games like Horizon ZD/FW run well enough with ultra settings for the former, high for the latter.