Even Gold can be comparable to Windows. Even silver, since a lot of games don’t actually work well or at all on Windows anymore. At the same time, Platinum can still mean issues. It’s not that black & white comparable when there’s so many factors going into it (regardless of the OS).
Those “medals” are how well the game works on proton. Platinum is comparable to Windows or better, gold is still pretty damn good, and so on.
Even Gold can be comparable to Windows. Even silver, since a lot of games don’t actually work well or at all on Windows anymore. At the same time, Platinum can still mean issues. It’s not that black & white comparable when there’s so many factors going into it (regardless of the OS).
Yeah of course it’s more nuanced than that, but enough of an explanation for someone who doesn’t know what there’s actually displayed