boot - Is there some universal way of booting up an ISO image without burning it to a DVD/CD?

Most of the tools out there that "burn bootable ISO to USB" rely on specific OS information. Is there some universal way to boot up El Torito bootable ISO without burning it to DVD or CD (and instead using for example USB)?

Maybe some special boot-manager will do?

I'm using Windows 10 and Opensuse Tumbleweed. I've my own EFI Partition with rEFInd and my EFI firmware have an boot-entry for it.

Especially I remember back in the time that there was something like this which copied the ISO image file (.iso) and some GRUB DOS bootloader into my USB flash which then essentially boot up the ISO image.