I think you may have misread that post. It said Linux was 5 hours, MacOS was 6.5...

		jml7c5 4 months ago \| parent \| context \| favorite \| on: AMD claims Arm ISA doesn't offer efficiency advant... I think you may have misread that post. It said Linux was 5 hours, MacOS was 6.5 hours. There's a gap (Linux gets 77% the life of MacOS), but it's apparently not that significant.