You will get leagues better picture quality using a camlink/capture card and a camera with clean HDMI out. A gopro is a good budget option but a used DLSR or mirrorless camera is going to be the best. Some DSLR and mirrorless cameras support video out over usb so you don’t even need a capture card. Here’s a guide on getting it to work on Linux with a camera capability list inside the guide. If you do want to go the capture card route I hear elgato’s camlink works in Linux.

Anything using vanguard such as valorant and league of legends, battleye such as pubg, destiny 2, and rainbow 6 siege, and easy anti cheat such as fortnight blocks virtual machines. Vanguard is especially bad because it will not allow to run the game with Intel-VT/AMD-V enabled even if you are running bare metal as of its last update.

I think the safe option would be to use a smart UPS and Network UPS Tools to shutdown the LLM virtual machine when it’s running on battery. I do something similar with my NAS as it’s running on an older dell R510 so when the UPS goes onto battery it’ll safely shut down that whole machine to extend how long my networking gear will stay powered.