What do you mean with "grab Proton"? By default Steam only uses Proton for games where it was tested to work but there's a setting to enable it for all that are

What do you mean with "grab Proton"? By default Steam only uses Proton for games where it was tested to work but there's a setting to enable it for all that aren't available natively. You can also force it to use Proton when a native version does exist which is useful for bad ports.