Imo, worrying about labels like trans or agender haven't been that helpful for me and it's easier to just worry about what steps I'd like to take going forward. Also, librafem exists, so you can be transfem and agender-spec. It's not necessarily one or the other.
As for bottom dysphoria, I think it's normal to sometimes miss secondary or tertiary problems until the primary problem is addressed. Like, when painting the walls, at first the tiny mistakes might not seem important, but once you fix the bigger problems, those other problems now get your full attention. Or like, if you break one wrist, sprain the other wrist and elbow, and get some scrapes, you might just not care at all about the scapes and not notice the sprains at first. But if you only had the scrapes, then you'd care a lot about those.
Of course being aware that it's possible to at least slightly internalize other people's happiness with certain things and accidentally think that such is something you need as well can be good. Especially when you see constant memes celebrating bottom surgery. I doubt that it would trick someone who would otherwise be actively against the idea into someone who thinks they want it, but it certainly can nudge feelings a little.
I think there's some thing I have a instinctual positive reaction to just because of the memes celebrating those things, but it's easy to tell that the reaction isn't really reflective of what I want.