Not sure about the Star Trek: Discovery Alt Universe Episodes
To be honest. The mirror universe episodes are actually when the show started to feel a bit more like a Star Trek show. I found the whole Spore Drive thing to be pretty silly if honest and found that harder to swallow than the mirror universe. If I have one criticism. I'd say the mirror universe episodes were predictable in terms of they were telegraphed right from the moment that we seen Captain Lorca's quarters on board the Discovery. I mean a Gorn skeleton and various other trophies. Not your typical quarters for a Starfleet Captain from any of the shows.
As for the Spore Drive. I'm still convinced that it was a bad joke. I mean come on. A Starship that is essentially fuelled by mushrooms and a scientist that has taken too many mushrooms.
I refuse to have myself or family subjected to gay anything when its portrayed as normal behavior. The actors should go back into the closets from whence they came. That is true with all tv. We constantly get hit with it even in superhero episodes. We are all being indoctrinated and expected to accept it as the new normal. I miss the old Trek series. They didnt have to have same sex relationships to make the series interesting and there were no openly gay or lesbian actors or actresses