I think any country with GDPR, although some are more known to enforce it aggressively than others.

France fining Amazon for similar surveillance based on scanner data: https://www.edpb.europa.eu/news/national-news/2024/employee-...

Germany issung a 10 million fine to a small (<1000 employees) company: https://www.dataprotectionreport.com/2021/01/new-german-fine...

That was "just" CCTV, not an AI panopticon. I think the law (and nearly-guaranteed consequences) are so clear in Germany that few larger companies would be stupid enough to seriously consider something like this, and if they did, any serious Betriebsrat (works council) would put a quick end to it even before the privacy authority could bring the hammer down.

Switzerland has laws against behavioral surveillance too, although I'm not sure how the enforcement mechanisms look in practice. But I expect something like this to be too blatant for employers to get away with it. (https://www.edoeb.admin.ch/en/video-surveillance-in-the-work..., "The use of video surveillance systems for the targeted monitoring of employee behaviour is prohibited".) These rules are explicitly considered health & safety rules due to the psychological harm (stress etc.) that this kind of surveillance causes.

"The European Court of Human Rights has consistently held that video surveillance of an employee in the workplace, whether hidden or not, as well as interception of the content of employee conversations on a work phone, constitutes interference within the meaning of Article 8 of the European Convention for the Protection of Human Rights and Fundamental Freedoms."

https://legalitgroup.com/en/employee-monitoring-what-employe...

I've posted a detailed answer here: https://news.ycombinator.com/item?id=43180709#43180723