All games which are not explicitly marked with linux support will now by default launch with proton. You no longer need to manually set the compatability for each title, or go into settings to enable proton globally for all non-supported titles.
Pretty nice QOL feature. It's pretty annoying to have to fumble through a few extra steps to enable the damn download button
I wish Apple and Valve would get together and actually make Proton on MacOS a more streamlined experience. the Game Porting Toolkit just isn't where it needs to be -- It feels like it's based on vinegar rather than something that has had lots of compat work done on it.