With the DW1000 it was possible to do PDoA by using two chips running off the same clock. There was even a decawave devkit that did this available for a short while.
In theory you could combine two dual antenna DW3000s in this way (or a single and a dual) and create a 3/4 antenna system to give azimuth and elevation angles. It’s hardly a new idea, the Ubisense UWB system was doing this over 15 years ago, you could get tag location from a single anchor.