That Star Trek universe is what caused half of it to begin with. There are an insane amount of random nonsense that happens across all other Trek, equally as crazy as in Lower Decks. It just so happens to be that how they can visually show it is more pronounced in Lower Decks than it would be in other Trek.
There is no such thing as a realistic Star Trek universe and there never has been. Not when you have Abraham Lincoln floating in space, a giant green ghost hand in space, a ‘God’ who is imprisoned inside the center of the center of the galaxy, another ‘God’ who judges humanity, Amelia Earheart frozen in time, Earth Dinosaurs who made spacecraft to escape asteroids, having sex with a space ghost who lives in a lantern, mushrooms that permeate the universe, pretty much anything from the Mirror Universe, ‘Red Matter’ that can stop a supernova, Warp 10 Salamanders, and many many many more things.