Most ARM hardware is cellphones, raspberry pi and the Mac M1, which certainly aren't that type. But a lot of ARM hardware is that type. The keywords are SBSA /

Most ARM hardware is cellphones, raspberry pi and the Mac M1, which certainly aren't that type. But a lot of ARM hardware is that type. The keywords are SBSA / SBBR / SystemReady. If your hardware is SBBR compatible then Fedora and Ubuntu's ARM64 iso, and Windows ARM64, downloaded from their website, will at least boot fine (drivers are a different question as always). There's a good list of supported hardware in the lower half of https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/arm-systemready-reach-50 https://community.arm.com/arm-community-blogs/b/architecture... . Many systems from Avantek, Gigabyte, NXP, Marvell, Solidrun etc are standardizing on this way of booting. DeviceTree is low-level enough that you can implement UEFI on top of it. There's a UEFI port for the Raspberry Pi 4 at https://rpi4-uefi.dev/ https://rpi4-uefi.dev/ that produces an SBBR layer, allowing it to boot any off-the-shelf ARM64 SBBR distro.