Every Google Maps review score in Germany is fake. Believe me.
Well, it does not have to be truly fake, but because of lack of negative reviews, what you have is score built only on positive experiences + advertisements.
Two of my honest, not defaming, describing real experience, negative (1-star and 2-star) reviews of two places in Munich from some visit in 2023 got removed by "defamation" process. It's the process where you as customer can do nothing, your review will be gone and Google will completely ignore your appeals.
I can assume that many or even most of negative reviews older than 2 years will be just removed by Google using this German defamation process, leaving only positive ones.
In the same time these places have many 5-star review written by agencies, posting similar AI-generated ludicrously exaggerated poetry, which obviously no one will ever drop, because they are not a defamation.
So please remember - Google Maps in Germany is full of crap reviews.