Camera movement live

I’d like to use touchdesigner to zoom in with a live camera/webcam to follow faces in a room and possibly cut to wide shots? Does anyone know if this is possible?

yep, this is possible and pretty simple with touchdesigner.

Check out these few tutorials to get you started with face tracking.

You can use OpenCV

or you can use RTX if you have the GPU for it

And then you will be playing with TOPs, moving images and compositing
Here is a good starter by @elekktronaut