from me all the FPV pilots I know don’t have the license, because it’s very difficult to do because they are almost all the same things that a real airplane pilot needs to know,
Also I have seen FPV 6S drones at maximum speed even in densely populated areas always exceeding the legal limit of 120m if they had a license
I’m not in the US, I don’t know how FAA operates. In my socially ridiculous country it’s called ENAC and the difficulty is similar to that of a car license in terms of the level of knowledge required, and it’s an infinite bureaucratic stress like any non-mainstream license, only those who do it for work do it.