You're probably already aware of this, but Vegas Pro 19 has an inbuilt Motion Tracking FX accessible via the Tools/Video menu. This provides some basic motion tracking but is noweher near as sophisticated as in Mocha VEGAS or Mocha Pro.
There is no typical camera like After Effects / Vegas Effects in Vegas.
But Vegas does have a 3D Parent/Child camera system, which does not adjust the 3D space by controlling the camera, but directly controls the 3D space (the box) itself to achieve the same effect.
I think this provides an infrastructure for Vegas to support 3D camera tracking. You can try to go to Boris FX and request their SynthEyes to support Vegas Pro. https://forum.borisfx.com/c/syntheyes/43