We have been living in the apartment for 8 years now with such a shower/window situation. So far, I did not feel that we are constantly being watched, although of course I do not know which videos of us are circulating on the internet.
However, we have now finalized the outlined bathroom solution with the adjustment that the right side of the shower will be made as a glass wall. The lower shower wall will either be a drywall (then floor-to-ceiling) or alternatively built with masonry, then half-height with a glass element.
This is fixed for your information so that Katja does not work unnecessarily. I will definitely give feedback on which criticized points annoy us in the future and which might perhaps not be as bad as perceived here.