Only tangently related(they are both thermal cameras). but it does get into why the frame rate sucks on thermal cameras. it is by marco reps who is pretty legit .
Edit: also according to the specs it’s 160x120@9fps
https://www.dji.com/mobile/mavic-2-enterprise
640x480 isn’t native sensor size.
But yeah it must be that it is a non US company. Puts into question the utility of this ban. These mavics (all models, and not only mavics) fly in huge quantities over the front line in Ukraine.
Cooled MCT detector and much higher requirements on readout electronics to reach 9k FPS.