rotorpixel doesnt speak about fpv per se but their website faq specifically calls out interference with the vision wifi signal so i would imagine that would imply there is potential to interfere with your fpv also? you may have already seen this on their site but just thinking it seems to be an odd thing to have on the faq if they havent had lots of interference situations with it:
IS THE VIDEO TRANSMISSION DISTANCE AFFECTED? IF SO, HOW MUCH?
One of the motors does partially cover one of the antennas inside the FC200 camera, so video transmission distance will be degraded coming from one side of the camera by some amount (proper range tests have not been done yet). However, in many of our tests, we've found that the main transmitter control signal (5.8GHz) is usually lost well before the video signal is lost.
If the live video feed temporarily stalls while within range, all wifi functions will remain in operation (start/stop recording, photos, camera tilt, image review, etc.). By simply pressing the "back" button, then re-entering the camera, the live feed will usually be restarted. (Unless you’re out of range).
Also, we've found that iPhones and iPads are far less prone to video stalls, likely due to a different wifi protocol being used. Stalls are usually automatically rectified using apple products in our tests, but your results may vary.