Why not drapes for privacy at night and leave them in the daytime or of you need heat and UV control get solar shades for that and daytime privacy.

Maybe french door with built in blinds.

Don’t do built in blinds when they go wrong they look awful

How about leaving them uncovered -- is there something to hide? -- and adding window film to reduce solar heat gain, or summer heat gain and winter heat loss.

please post an exterior shot to give context where the window is - is this a front porch? is this a second story off a bedroom?

Pretty window

Unfortunately my kitchen backs on to a residential street... nice idea though.