Almost definitely puffballs, one of my favorite mushrooms to forage. Though I’ve never had ones this big and I hear they lose a bit of flavor if they’re giant.
If you cut a *(vertical) cross section and it’s a uniform texture with nothing that looks like the structure of a classic capped mushroom that should rule out any lookalikes. Should still be good if the inside is white and not starting to turn brown.
I really want to hear the room chatter that was happening 5 minutes in. Surely after like 15 the sorts of people there would have been like ‘ok we’re vibing with the supreme leader listening to music, this is cool too’ but after 5 minutes there had to be some confused discussion that would be really funny to hear.