I’ll go first. Mine is the instant knockout drug. Like Dexter’s intramuscular injection that causes someone to immediately lose consciousness. Or in the movie Split where there’s the aerosol spray in your face that makes you instantly unconscious. Or pretty much any time someone uses chloroform.
Talking head montages, especially at the beginning of a movie or TV show. I think directors try to ground some fiction in reality by having a bunch of news reporters comment on some event but as someone who tries to avoid that garbage it just feels like the movie is made for someone else and it’s been used so many times it’s irritating.
Also product placement seeing a soda can or car perfectly framed to see the brand name or logo cheapens any sense of artistic integrity and feels like watching an advertisement.
And if I can indulge in a meta trope of streaming service monetization since it’s become so common these days having a subscription + ad tier. Sub no ads or ads no sub, mixing them is the same greed as cable TV and shouldn’t be supported by subscribing (Disney, HBO Max, prime, Netflix, etc).