Normally the iPad stops doing something because it has ran out of room in the RAM. I know this because I constantly push the LiDAR scanning on mine and managed 2 full storeys of my lab building before it crashed and I lost all the data, 3 hours of work down the drain.

3 minutes is normally not long enough to cause any issues though...

Mark, I'd be really interested to see if you could emulate the idea but using a foldable phone to see if Android can replace iOS when it comes to work but also can one device take the place of 2?