> It's a bias, an in-bubble illiteracy effect, concerning the perception and analysis of realities (e. g. experiences) outside that bubble, mirroring an in-group's projections about an out-group. It is, in my decades of experience, a very common phenomenon in the IT sector.

I (also German) have the impression that people who work in the IT sector are often much more critical of surveillance methods (including smartphones) than the average citizen.