My current desktop system is a Raspberry Pi 4B with a 64 bit quad core ARM processor at 1.5 GHz and 4GB memory (8GB version is also available). It runs BSD's and Linux distributions, it has no UEFI, and I can tinker with it to my hearts content. It's great for writing and coding and everything else I do. If I want to play games, my son has several games consoles.
I recommend that you take a look at the Raspberry Pi and other single-board computers. They're cheap too :-)
I recommend that you take a look at the Raspberry Pi and other single-board computers. They're cheap too :-)