I remember reading that the key factors to forming friendships were proximity, repeated, unplanned interactions and a setting that encourages people to confide in each other. So I would say fifo would make it more difficult, but not impossible if you made it your mission to utilize the time you're here, maybe? Set up coffee dates, drinks, things like that, and maybe check in via text while you're away to keep the connection open. That is if there's someone you think you might like to become friends with, or someone you would like to be closer to.
Not sure if this helps. It can be hard when you crave that deep connection, I know. Hugs