Does your Mac have a uefi32 bios or a uefi64 bios?
If uefi32 then you need Linux uefi32 iso which are quite rare and difficult to find.
I don't think Mac installer image files are supported by ventoy at all.
If uefi32 then you need Linux uefi32 iso which are quite rare and difficult to find.
I don't think Mac installer image files are supported by ventoy at all.