You see the character through the eyes of someone hiding and watching. The audience feels the unease of "who's watching?"
Openings of horror and thrillers, scenes where a character is alone, when you want to hide the culprit's face until the end.
Official preset available — Higgsfield 'Handheld', Veo 'Point-of-view shot' and 'Handheld or shaky cam'. The Melies 'Voyeur' page also has a prompt example for a hidden-watcher composition.
Stalker POV from the dark, the camera peers through the leaves of a hedge at a lit house window where a woman washes dishes unaware, a slow creeping drift sideways, shallow focus on twigs in the foreground, 50mm lens, cold moonlight with a warm kitchen glow, creepy mood, 6-second shot.
handheld POV of someone hiding in dark bushes, slow heavy breathing, watching a woman through a lit kitchen window at night, leaves partly blocking the view, camera creeps forward
Halloween (1978) — Shows the killer's view with a first-person camera, and these scenes were shot with a Steadicam (Wikipedia) · Black Christmas (1974) — Used POV shots from the killer's view and set the template for the American slasher films that followed (Wikipedia)