This Video tests the setup using 10Gbps ethernet: https://www.youtube.com/watch?v=4l4UWZGxvoc

There isn't something as mature as gVisor afaik. https://github.com/smoltcp-rs/smoltcp implements many of the same abstractions as gVisor.

There is also https://github.com/firezone/boringtun which is a fork by https://www.firezone.dev/

Wireguard is a L3 VPN that uses UDP (L4) for tunneling. Thats probably what was meant.

I remember iOS not always respecting VPN's do these notification attachments get loaded through a VPN?

Take a look: https://krausefx.com/blog/ios-privacy-instagram-and-facebook...

I also own a 5120 X 1440 screen and use it daily with my caldigit ts4 + m1 max 14' mbp. Mostly I use the built in dp 1.4 port on the caldigit to drive my screen with an dp 1.4 cable. Sadly the macbook only allows upto 120hz on the external monitor. In this reddit post you can find some more information about the setup: https://www.reddit.com/r/ultrawidemasterrace/comments/ttliqe...

Edit: spelling

Discord has all of this. You can even use a bot like Groovy for Music.