Yep, this is the issue they're discussing here. It's not really news. I've heard several stories about this, even where the camera has never been deliberately used while mounted.

As far as I understand the issue, riding with a phone in your pocket should not be an issue. The inertia of both your body (which is only loosely connected to the vibrating object in question, eh, your bike) and the phone (which jumps around in a soft pocket) should make sure vibrations are not transferred to the phone. When it is mounted in a holder, the vibrations are transferred directly.

So, basically, don't mount expensive electronic stuff that's not designed for motorcycles directly on the handlebar. It will break due to vibrations, sooner or later. And I won't even to go down the rabbit hole of the vibration resistance of various solder methods...

Also: If you have metal panniers, you probably shouldn't put your phone next to the walls or the bottom, but inside some soft stuff. Your computer should be in a vibration reducing case. Many of the components in a laptop are relatively heavy, and if it is not constructed to withstand vibration, they may simply fall off. Same goes for other electronics.

For automotive electronics to be certified in the EU, they have to go through extensive vibration tests. This is one of the reasons why certified automotive electronics are chunkier, heavier, less efficient and pricier than seems reasonable.