So the forward backwards in a normal camera/consumer drone doesn't exist, it's a combined application of different throttle inputs.

So you push forwards and that means the drone has to do several things. As all the propellors point down, in order to move forward the drone has to angle itself down at the front and up at the back.

Now, when all four props increase thrust, the drone moves not just up but forwards! Great, we're going forwards. But now, if you keep the same thrust as you had when you were stationary, you will go forwards, but that forward motion comes at the cost of vertical thrust. So you'll go forwards but will lose altitude.

So to counter this you add more thrust, keeping the altitude the same and moving forwards. But how do you stop? If you just re-angle backwards, you'll have the opposite problem. So you need to tweak the thrust while angling backwards and pulling the nose up.

These are all things that the drones do in N/S mode, and they are incredibly smart and automate it all with lots of clever sensors and mathematics in real time.

But FPV drones, and the new DJI FPV in M mode, don't do any of that. In order to give you the control that is needed for freestyle flight, we also have to do all of those things as the pilot.

Essentially it's flying a helicopter, but much more lightweight and twitchy, and no need to control rotation with a tail rotor as we have two sets of contra-rotating props which cancel it out.

This is just how it has to be, if you want the freedom of flight of FPV, you have to understand about lift, thrust, correction, angles, rolling etc.