My only concern to these machines is that if theyre running an intel chip, its most likely to have intel ME which is a QOL stuff but a potential backdoor. Luckily, these cheap mini pcs has most of the time, an unlocked bios, so it is easier to pull the bios bin, patch it with intel ME removal and then reflash the patched bios.

I find the US branded ones (HP, DELL, etc.) more pain in the ass to patch the bios because most of them has locked bios. Doable but a pain in the ass for sure.