kood wrote: Besides, I see that in these cases the cameras were installed not to protect their property but to spite the neighbor
And I see you're interpreting the facts as you see fit.
In both cases, the court punished the owners of the installed cameras and how they explain is only because they did not want to bear any consequences - it's really hard to understand???
kood wrote: I would like to ask you to indicate where the court refers to the GDPR?
Judgment of the Court of Justice of 11 December 2014, case number C-212/13Private video surveillance and purely personal or household activities
Added after 6 [minutes]: zybex wrote: How will my neighbor know if I'm recording anything?
It's a court order...
In any case, a neighbor may ask if the cameras mounted on your building/tree/pole looking in his direction cover his area.
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zybex wrote: By the way, if I wanted to record someone without their knowledge, I would definitely not expose the cameras and hide them cleverly.
We're bouncing the ball now

What difference do you see between recording someone with a camera on your house and one that is hidden in the bushes?