My Fairphone 2 regularly reboots during swiping in the Bigmaker game.
It does not happen often, but it keeps happening - say once in a few hours of playing. Half of the time, I lose all of the data and have to re-start with the tutorial.
It’s not in the Bigmaker game - my family members do not experience this on other phones. Also, it happened to me once in (I think) one of the settings pages, also while moving a finger.
Re-installing Google Games and re-installing the whole operating system has not helped me.