Yeah there's situations where it has a place. There are a few (not many) medical checkups that AMAB individuals should do earlier than AFAB individuals even when we're on HRT, for example. There's legal contexts where it matters, usually due to lack of self ID laws in a given jurisdiction and things like drafts. I sometimes say "queer AMAB youths" when i talk about what the experience of unouted transfems and gay and bisexual men is like during adolescence because we go through a lot of the same shit when people have a hunch we aren't cishet, but can't yet differentiate whether to hit us with transphobia or homophobia (not that they get good at that later in life, either).

In German, i also appreciate that we have terms like männlich / weiblich gelesene Person (person read as male / female) to refer to just how people perceive you - there are situations where it makes sense to refer to that instead of actual gender indetity, like when i'm talking about cis women and unouted or not passing transmasc people being exposed to the same mysogyny from their surroundings.