The Pi Pico is capable of running Doom and it actually runs quite well when overclocked. It would probably take a bit of work to get it running on this computer since it uses a second RP2040 as a graphics processor.
If you buy something DRM free, you must keep an offline copy. They can take away the option to download it, but they can't prevent you from playing the copy you already downloaded.
Even S3 cold storage is expensive when you have tens of terabytes to backup. If you pay for a year or two of that, you could have bought more hard drives to back it up on.
Reinstall using btrfs as the root files system and enable automatic snapshots. The data on your home partition will be fine, just make sure the installer doesn't format it.
There is no such thing as unregulated spectrum. Even though you can use some equipment without a license, it's still regulated. You will get in a lot of trouble if you are caught using a jammer.
If the VPN is free, then you are the product. They are collecting and selling your data. They may even be routing other peoples data through your internet connection.
Four of the standard 8 pin PCIe power connectors would work well.
The new connector really should have used some large blade contacts to handle 50 amps.
Either use over the air TV and don't connect your TV to the internet or pirate whatever you want using a VPN or seedbox.