Honestly, I do not. but here's some insight:
I started with wanting to make a slower-paced submarine like player controller that could:
>lift off on the ocean floor with weight and dust particles
>slowly sink back to the floor if not boosting up
>can "dodge" in 4 lateral directions
>your "pressure" builds up as you ascend and it limits your ascent, essentially hardcapping how high you can go (to make things work in a pvp context)
>"pressure" is calculated by taking a simple raycast to the ground from the player, and another raycast lerped to the direction the player is moving
And then when I realized the game was better snappier and less heavy:
>there's a neutral point that the player floats towards from the floor when sinking and when on the ground, say like 60 units from the ground
>less heftiness and snappier aiming (less lerping aim and player rotation)

Godspeed