When I learned to fly racing drones, I used Velocidrone; I have no experience of FPVSim.
Even if you don't plan to eventually fly an acrobatic or racing drone, the sim experience can be a bit relaxing & focused. I used to practice on a 2nd monitor while I was in large mandatory group meetings for work.
If you do plan to build and fly drones, then a simulator is absolutely worth every penny. You pay for real drone crashes with time and money, and you probably need 100 hours of practice before you can handle the real thing (and not that well).
If I were going to get back into the hobby, I'd probably try to do long range fixed wing aircraft with FPV and flight automation. The view will be much more enjoyable and the batteries will last much longer. I think there's also less community pressure around RC planes vs. drones, especially the loud racing ones.