kood wrote: kood wrote: in the course of a purely personal or domestic activity, i.e. unrelated to a professional or commercial activity.
You're posting stuff you don't understand yourself

Understand that recording part of a neighbor's property or public property is beyond a purely personal or domestic activity and does not necessarily have to be related to a professional or commercial activity...
You can argue, but you are wrong and you as a specialist should know about it and inform your clients about it - otherwise they may face unpleasant consequences.
And here is one of many court judgments:
The Court of Appeal in Gdańsk in its judgment of October 30, 2019 issued in case No. no.: V ACa 440/19, awarding the plaintiffs (marriage) compensation from the defendants jointly and severally in the amount of PLN 4,000. for both the claimant and the claimant. He also pointed out that the monitoring of the neighbor's yard violated his privacy. Therefore, he has the right to feel under surveillance and demand compensation.
And another:
Judgment of the Court of Appeal in Warsaw of February 14, 2019, reference number: V ACa 20/18:
”The recording of the image itself and the possibility of its reproduction by persons who were not authorized by the plaintiff are a violation. Directing the monitoring, even in part, at the neighboring property, constitutes an unacceptable interference in the privacy of the owners of this property, even if there is no publication or other use of recordings and photographs obtained from these cameras. Therefore, it is not decisive that the recordings have not been published anywhere or made available to third parties. Such actions would only increase the scale of the infringements and the intensity of the measures that would have to be taken to reverse the infringements.”