You are not getting my point.
The translucent or blurry background is normal yes. My issues is that my screen gets veeeeeery blurry in a ugly way if I bring down the notification centre in a very dark environment.
Try tonight in your room while all lights are switched off to bring down the notification centre on your watch and pay attention to the translucent background.
Here you go, do you see the difference? Clearly there is something wrong:
During the day: normal backround
View attachment 719325
During the night/dark environment screen goes crazy -Ghosty background
View attachment 719324