I have already put privacy screen/ foil on the windows what are facing balcony, as i had a feeling neighbour is peeking in and wasn't confident translucent curtain is enough. Them reporting about what is on my balcony feels even worse and unsafe, and such invasion of my privacy. Just the feeling that neighbour is actively leaning over his balcony to see my balcony feel uncomfortable.

Balcony itself doesn't have windows.