X64 5.22 does not seem to boot correctly.
I have tried to boot 5.22 from a USB stick on a machine that worked perfectly well with earlier (5.18) sticks - I then installed to internal HDD and now had to reinstall because of the size increase of the boot partition.
The only way I could get that done was by reverting the machine to Windows, as it refused to boot from the 5.22 stick directly. Strangely when I install Windows, then use the OS methode of UEFI boot (Hold Shift, click "Restart Machine", then after 30 seconds or so you will end up in menus that let you select a boot device for the next boot, regardless of BIOS!) I can boot the Batocera stick.
I am PRETTY sure (but not completely) that this was not the same behaviour in 5.18 or so. I was able to directly boot from the USB. Don't ask me what could cause this weird behaviour. Did something in the UEFI boot setup change between versions? It would explain why several people posted "X64 does not boot" questions the last days.