My answer to that it it all depends on what you want to get out of it you don't need to blow the bank balance to make really good video and take amazing pictures but obviously there is a reason some drones cost hundreds of $/£ and others cost...
Unless you have a source for DJI using a 3rd party for props, that's not a valid assumption. They were manufacturing their props and motors in-house since the Phantom days.
That doesn't mean that MAS props are less safe.
No disagreement, although the only zoom on the Mavic 3 is digital which can be done just as easily in post.
For a still photographer, the camera and the flight time are most relevant. The 20MP stills are the same size as those on the Mavic 3 so...