ᐅ Bathroom windows (view out allowed / no view in)

Why? That is precisely the main advantage of a venetian blind compared to a simple roller blind.

It makes no difference to me whether it’s a roller blind or Venetian blind.
For me, neither is practical. Whether I lower the roller blind when getting into the bathtub and raise it again while lying in it, or close the slats of the Venetian blind when getting in and open them again while inside, it makes no difference to me.
I would rather switch to liquid crystal windows. But that’s not practical for me either.

Depending on the angle, you can still look outside without anyone being able to see in, which is a small but noticeable difference.

Switchable glass film might be something for you. Power on = clear view to the outside while bathing, power off = frosted glass effect...

It basically works the same way as liquid crystal glass. However, for me, it’s not very practical if I have to press a switch every time.
If you can easily see inside through the window, the view isn’t really that great either (just an assumption without knowing the actual location).
In that case, I would rather opt for a roof window above the bathtub, or possibly a panoramic roof window like the one (I think) climbee has.

Whether you completely darken a window with a roller blind or only reduce visibility using Venetian blinds makes a significant difference.
(In general, Venetian blinds are superior to roller blinds in almost every aspect.)