There is no f'in way manufacturers will agree to the same battery as everybody else.
now you'll also need batteries for model years in each of the manufacturers vehicles..i.e. a 2021 Hundai uses a different battery than a 2022 Hundai would, etc...
the battery swap seems like a logistical nightmare
Robots and AI could make it a snap.
Drive into a station that senses what battery your car uses. The appropriate robot with the appropriate battery moves into place and makes the swap without any humans involved.
*Patent Pending.