“Useless lesbians” has just about gone from being a narrative trope to an actual yuri sub-genre.
Romance manga in general are massively invested in the dynamic where if the characters just communicated like halfway normal human beings there would be no story (effective interpersonal communication can be difficult in many circumstances, but in some manga series a simple, “Wait, let me clarify what I meant” would bring the whole house of cards crashing down).
At this point, though, useless lesbian yuri stories are nearly as codified as shogi problems:
A likes B and B likes A, but one or both of them are unaware of their own feelings.
A likes B and knows it, but thinks B would be disgusted if they knew it.
A and B are unaware that they’re totally into each other, but someone else (maybe everybody else) is aware of it, etc.
The issue is that (usually) readers are put in the position of knowing more than any of the characters know, and some people get so frustrated they start wishing for the story to not exist.