It would be great to add compatibility for the CameraOverhaul mod by Mirsario! It will definitely add some more realism

Is Real Camera incompatible with CameraOverhaul?
I remember these two working well with each other when I was testing.

strafing and mouselook roll works but vertical and forward velocity pitch doesn't work. I'm on 1.19.2

You're right, vertical and forward velocity pitch doesn't work.
But I won't fix that, because on the one hand, it's not easy to fix due to the code order of the two mods, and on the other hand, if the pitch works, the direction of the camera and the bound part will be different.