Both new Macs (Intel chip and M1) suffer the same problems because it doesn't have anything to do with the chips: Both use their SSD's as batteries interchangeably. (Physically, this has always been possible. What hasn't been easy, ever, is not corrupting the data when you send power to be stored with it). My Macbook Pro has five "batteries / hard disks", but it's not clear either inside nor from the OS's point of view which is being used as what at any given moment. It has to do some complicated finagling between power and data busses and probably uses those interchangeably too. My Macbook stopped being rechargeable within a few months.
