Apparently it’s been shown (I don’t have any sources on hand though) that most Proton games run better than native Linux games. While this probably just shows how badly made most Linux ports are, it does also show how great Proton works. Most of the time I’m able to run at Windows-levels of performance and in some cases the games run even better with Proton that in Windows, due to not having any additional bloat. I agree with you that there should be more games made natively for Linux, but gaming on Linux is super feasible nowadays.