I'll go first. Mine is that I can't stand the Deadpool movies. They are self aware and self referential to an obnoxious degree. It's like being continually reminded that I am in a movie. I swear the success of that movie has directly lead to every blockbuster having to have a joke every 30 seconds
One of my favorite fourth wall breaks is in Trailer Park Boys when Bubbles randomly ends up on Jimmy Kimmel and then Snoop and Tom Arnold show up, and Tom Arnold’s a fan of the show and his mind is blown that he’s actually there.
One of my favourites is the episode of Supernatural where they cross some barrier and end up in "our world" where they're just actors on a tv show, magic isn't real, and Castiel is actually a needy beta who keeps wanting to hang out.
They knew that, by that stage of the show it was just shlock so they leaned into it.
Maybe a better way to put it is that of all the 4th wall breaks I've seen, it sucks the least. I generally hate 4th wall breaks, but this one was kinda fun.
The season did suck though, and definitely as a result of that exact thing. No disagreement there.