not according to the new standards recently approved, plus it was shown that what separates the universes in db is just regular 3D space,
with it even having it's own cosmos and planets and stuff, which is far from the higher dimension that should separate space times, that and time travel in one universe affecting all 12 at once makes it so that the 12 universes are just 3-A structures and not separated space-times
not really, akm commented earlier and he still has not responded, we should probably wait for him, also maybe contact some staff who are knowledgeable on tier 2 space time stuff? that would help