there are definitely SOME friends-to-lovers ships which bore me personally, but even then, I wouldn't necessarily say that is the reason it bores me... usually it's just more about not finding either of
the individual characters interesting in their own right, or I find the dynamic to be not as close OR... well, too close... for me to be wanting to go there
like, I don't always ship every pair of friends but neither do I ship every rival pair or w/e... like, every ship has their own dynamic, not all friendships are the same!