I’m glad but also sorry to find out I’m not the only one to have this exact problem with the same exact mini pc. The only way to boot batocera is to go through the bios and force boot from the usb. Otherwise, most of the time, it will get stuck at “booting batocera.Linux”.
I did notice something peculiar. If I boot windows and then reboot with the usb drive inserted then it will boot batocera with no problems.
It’s such a shame as I took this pc just on purpose for retrogaming. I’m tempted to just install batocera on the internal drive. But it would be a shame to lose completely Windows and I don’t know if it would work.