They do have a multi camera setup and you can take advantage of it with the calibration routine and the set focus command. It’ll get your placement a lot better.
But for me, if alignment is critical (like it needs to be within 0.01”) I always reach for a jig. My general method is to use corner or edge jigs, they’re fast, simple, take little material, and above all else, absolutely dead accurate. You sound like you have a pretty good handle on jigs but we all have slightly different workflows… here’s a quick example of mine: