Which mouse? HID is all but guaranteed to work on linux

Raspberry PI

First image looks like a possum lol

Amen

Nextdns.io for hosted DNS blocks ads and malware.

Also this list

https://github.com/pluja/awesome-privacy

A1 is recommended for compatibility and performance.

https://www.kingston.com/en/blog/personal-storage/memory-card-speed-classes

Remote play together and steams controller management are two separate things.

RPT creates a tunnel to make everyone appear in the same session.

For controllers, especially in Linux check that you have the correct settings enabled eg. Enable PlayStation/nintendo support vs the default Xbox emulation.

I’ve personally never had any issues with RPT and controller settings after checking the controller is setup properly in Steam.

https://www.protondb.com/app/2600

Gnome terminal supports everything you’re asking for

https://help.gnome.org/users/gnome-terminal/stable/pref.html.en

TLDR, no

The cpu isn’t the only piece of the puzzle. 6.5 kernel is only just released, and at least just supported on Debian testing.

It’s not crazy that you haven’t setup any power saving profiles, or that the kernel doesn’t natively support these new chips and architecture.

HDMI 2.0 has limited support for high-res displays at 21:9. Check that your cables also are up to the task.

Running both the internal and external display at these high resolutions will be a challenge, only getting 30hz here makes sense.

Mr Chromebox has a ton of tools and info about this. https://mrchromebox.tech/