Maybe check out Tailscale. It's mainly a mesh VPN for your own devices, but they have a lot of options included so you can share stuff with other people.
exu
Or Wayland, where this isn't an issue.
I don't have an ultrawide to test, but can you set the correct resolution in the game? Maybe it's using the settings from previous launches with 16:9.
OpenyourwalletAI
Does your wine support Wayland natively maybe? Proton doesn't yet, and I found some games have issues with that.
I usually use ganescope for such games. Maybe try that
You can install Wireguard or another VPN to encrypt your traffic to the VPS.
Apparently this wasn't always that obvious.
https://en.m.wikipedia.org/wiki/Apple_Corps_v_Apple_Computer
Set 'blendos-base' in your system.yaml, install additional packages, update and reboot.
I already learnt of blendOS two weeks ago, I think in a discussion of immutable distros.
Really looking forward to play around with it some more and maybe replace my Arch install with this.
I'm not sure how involved Micay still is with GrapheneOS, but he did seemingly talk in the name of the foundation this march in discussions of Mozilla Location Service being retired.
https://github.com/mozilla/ichnaea/issues/2065#issuecomment-2001175420
And he still feels the need to attack other projects. (Last paragraph)
https://github.com/mozilla/ichnaea/issues/2065#issuecomment-2002073168
If I had a Pixel I'd probably still try it, but not sure how well they'd like me rooting and customizing the device.
On the other hand, I haven't really had issues with Realtek. Probably because their gigabit chipsets have been out for long enough to be stable.
In my experience setting environment variables is pretty inconsistent. The easiest way would be using /etc/environment. This sets stuff globally for all users and definitely works.
PAM also used to support a per-user environment file, but that's deprecated or removed even. The best you can do for per-user config is setting variables both in your login shell and the systemd user environments file.