QNAP x86, standard uefi! Can run anything. Been running mine with Proxmox, ZFS, Runtipi and others. Easy GUI setup for everything, Runtipi is just clicking add for various things.
Basically, all of those https://www.qnap.com/en/how-to/faq/article/nas-recovery-guide-for-x86-based-nas
There are some older models that can only boot from the DOM, however most newer ones (especially the AMD Ryzen ones, which i personally would highly recommend) have no issue. The early TS-X77 models do not boot from NVME, but that can be overcome with some creativity :)