I honestly don’t realy know. The Arch wiki says that there are some differences with AMF and OpenCL but I don’t know how up to date that information is.

No. The open source drivers are better at almost everything. The only reasons to use the propriatary one is if you need some OpenCL improvements of if you are using a Radeon Pro GPU. For normal usage and gaming the open source driver will offer more performance and better compatibility.

Yes PoP OS is going to update the driver in their repos to this versions. Unless you realy want the new driver just wait the few days/weeks it will take for it to arrive in the official repos

Are you sure you are using the nvidia GPU? If your laptop has an iGPU i could be defaulting to running on that.

Maybe check ProtonDB. You can usually find game specific issues and solutions. The page for Metro: Last Light Redux is here.

Are you sure your using the official (propriatary) drivers? Sometimes just installing the official drivers isn’t enough and you still might be using the nouvau drivers. Run lspci -v find your gpu and check whats listed as the Kernel driver in use.

The Nvidia X Server Settings is quite limited but im pretty sure that it can do color correction, but i noticed that on Pop OS the app needs some extra tinkering to get all the options to show up.

Try running it from the terminal and see if any errors show up. I remember it threw some errors about keys or smth and because off that a lot of options would be missing (including color correction).

Great idea. Trainning an AI model on twitter totaly didn’t go terribly wrong the last time it was tried. /s