I’ve not had any gaming issues. The only real perfmance impact is boot time (which can be better or worse than systemd). The future I hope for is dinit with turnstiled. dinit is really quite nice. But openRC also works quite nicely. Unless you wish to excessively engage with system services, none of it makes that much of a difference. The real difference in usability is in how well everything is packaged and maintained (which is why openRC on gentoo is great for example,).