I can't remember the tile of this film, or even if it's real (?!).
70s style/theme but modern. Bunch of people (some popular well known people) got invited to this genius/entrepreneur's house. They each got served a cocktail that was perfectly tailored to them. Then they went on this psychodelic trip and the whole thing went to shit.
I just watched this last week, OP this is 100% what you're thinking of. The guy that directed this episode also directed Mandy with Nicolas Cage and Beyond the Black Rainbow.
It's not it. I've seen Glass Onion but this was was a lot darker. At the end they are all running away trying to disable some sort of AI that powers the house (I might be wrong on this one). Very heavy on the 70s estethic. They were sitting in like one of those living room pit situations from the 70s