I've played a few FF games (and the MMO to a degree) so I am familiar with several of the base classes.
It's just the last preliminary rule literally says 'hey please wait on the lore.' *shrug*
Tbf, it says to ask questions before settling and in my post said "akin to so-and-so" in terms of what all I'm interested in. I haven't settled on anything myself, just announcing where my interest lies for character concepts. I interpreted it to be okay for us to discuss these things so we can align ourselves together and avoid the potential "Oops, All Dragoons!" I don't presume that everything will be a 1:1 translation.
So that being said, I'm happy to play a backline magical support with perhaps some religious affiliation. As a support, I don't mean to be a pocket healer but a summoner/buffer/debuffer. If we need something more martial, I'd be happy to be a physical striker like firearms (if they exist) or bow and arrow. We have options.