I dont understand what they mean, outside of the ones that need you to enable secure booting (which we can do in linux, hell we can even segment that wine uses the fTPM on chip and the linux install uses a plugged in TPM), but you can use battleeye and EAC just fine on linux, I do it daily.

if you want a LOT of them, govdeals.com is a way to go. You might hate me for showing you that place. Its how I ended up with a great generator for my house as well as too many servers.

And real good specs on most those machines, most will be at least DDR4 some even DDR5