Place it at the end of a disappearing scene, just after the character leaves the frame, then follow it with a few moments later to show time passing before anyone notices. Add a bruh reaction after that pause to underline that nobody came looking.
Über diesen Sound
This is an 11-second French voice clip built around the line 'On me voit plus,' spoken as a statement that someone can no longer be seen. It carries a feeling of being overlooked and quietly fading from view, awkward rather than dramatic. That mix of embarrassment and gentle sadness makes it land when disappearing, being ignored, or slipping away is the joke.