I think the community plays a more important role in what they want for F#.
First there was a focus for Fable and targeting frontend, and now you can target Python and potentially use F# there instead of Python.
But the community is interested in a lot of things, so F# doesn't have a real "singular" focus, like Go(backend systems/api's).
F#'s ties with Microsoft is a big productivity boon, but also seems to work against it sometimes...still the community really gets stuff done instead, because it's such a practical language!