I think the most obvious pattern in many modern TV shows/movies is the musical interlude. You insert some famous pop song as 3 minutes of filler and try to transfer the affection for the song to the show.
A recent example is in The Umbrella Academy one of the characters dances to "I Think We're Alone Now" by Tiffany. It is entirely superfluous. It's not a new technique. I recently watched Love Actually for the first time and it had at least 3 of these types of scenes. When they happen though I just tune out as my brain screams "you're being manipulated". They're filler. They're like "design by committee" or "marketing checklist".
Related is the downbeat 3 minute musical interlude montage. Something disappointing to the character happens and then there's a downbeat montage of them brooding etc. IIRC Angel had 1 or 2 per episode but they're all over in modern shows.