Our MacMini is rocking 64GB, but after going through this I really wonder if Apple has a Department to make repairs and upgrades harder? Why not just have a removable base that allows easy access to the RAM without having to sweat about breaking very tiny fragile connectors and needing to pull the main board just to upgrade two DIMM boards? My advice is do it once and be done with it.
Plus my OG iFixit screwdriver set didn’t have a TR6 bit so I now have a new set to complement it. The old set did have one cool feature, driver has hole in handle to allow you to make it a T-nut driver which made easy work of T10 screws which are torqued pretty tight. Thanks iFixit.