This game was my childhood and I just played it again 2 months ago. And realized how bad I was back then.
You can encrypt your /home separate with another password.
Isn’t the GPU used for the application defined by the monitor it is opened on and on which GPU this monitor is then connected to?
I use portmaster on my fedora instance. I disabled blocking all from LAN and made a custom rule set to allow some devices and block all others.
You don’t have to self host it. It works like TeamViewer. You install it on both the client and host and with the ID and Password you can then access your remote client. But if you want more control/privacy you can host your own relay server.
RustDesk. Also possible with selfhost servers.
LM Studio https://github.com/lmstudio-ai/lms