These are most likely AGM, which are supposed to have very little vampire drain, unlike lead acid. My Bolt and Mach E both have AGM batteries, and I put a deep cycle AGM on my boat.Maybe a deep cycle or lithium could solve it?
If you go to other EV forums, like Mach E or Rivian, the same battery issue seems to occur often on those as well. Not only that, but then because of the PAAK (phone as a key) feature, people also complain that the car apps cause the phone batteries to drain too fast. The phone and the vehicle are always trying to pick up a Bluetooth connection.