[qwertox]

I've read the same, but my Pixel 3 had no issues after ~12.000km, half on it on asphalt, the other half on gravel and some rougher parts. Then a Motorola and a Xiaomi which I guess shared each half of the ~12.000km (two phones mounted, Xiaomi replaced Motorola halfway, both in parallel to the Pixel 3), where both of these devices (not the Pixel) were making automatic photos at geofenced spots during the ride (one of the street, to record the wet/dry condition, one of the selfie camera to record the sky condition cloud/sunny).

Though I do use a rubbery holder with good damping properties [1] and only recently moved over to a fixed one out of aluminum [2] for one of the phones, which could start causing this issue.

[1] https://www.amazon.de/gp/product/B06Y6C3P43

[2] https://www.amazon.de/gp/product/B07TQDMX6Z