> partly because of legal reasons where a company can sue your or at least send you scary legal letters for libel if you damage their brand online like that in Germany. Or at lest, the company can simply demand the social media platform take down the offending posts, and by German law they have to comply which the likes of Google/Meta will comply automatically without any arbitration.

I had Google take down my (negative but factual) review of a restaurant because of apparent "libel". There was basically no recourse (except "you can file a complaint but we'll probably ignore it"). I guess that explains why there are so many bad top rated restaurants.