Alternatively also VOLT, perhaps? It doesn’t hurt to fight for a more unified EU.

For the problems you encountered: the refresh rate can be set in the monitor settings. If you can’t go any higher, then there might be a problem with your graphics drivers. It is also important to add that Pop!OS is based on Ubuntu, which can take ages to implement modern changes. For Gaming I would generally recommend a rolling release distro, maybe it be OpenSUSE Tumbleweed, Fedora, etc… Otherwise you might not get the cutting edge tech that you need.

As for Tetr.io: it seems to be a problem with Vulcan, namely that improperly configured drivers will use the iGPU by default. How do you install/run that game?

It’s kind of unclear what they use as sources nowadays. What is clear however is that they use their own search engine, Teclis, so it doesn’t just act as a proxy for other search engines but searches will only remain in their own engine.

This is why I appreciate immutable distros so much. Sure, you can’t really do super sick stuff by tinkering with system files or modify some system components to make it your dream system, but the average user really doesn’t need that. In most use cases, the flatpak version of a software will just run fine, sometimes even better than the standalone version due to certain outdated dependencies being hard to acquire/install that the Flatpak just integrates. Sure, Flatpak also has issues, but for the most part it works for the end user.

Generally I think immutable distros are the best entry-level distros for newcomers. Stops people from accidentally bricking their system.