Reminds me of a moment in Deltarune that's sort of the opposite of this:

Minor spoilers: >!In Chapter 1, if you look under Asreal's bed you find a console with two controllers, one original and one knock-off. Then at the very end of Chapter 2 if you look at Toriel's monitor in her classroom, it'll say something like "The desktop background is you and your brother playing videogames. He's using a knock-off controller."!<

That hit me unreasonably hard lol. It was a mix of "AAAAAAAAA he's such a good older brother 😭" and "Jesus Christ this is some good fucking storytelling." It's a callback to the very beginning of the game, which you find at the very end of the demo. An absolute gem of storytelling put into the flavor-text of two otherwise mundane objects, the latter of which is in a totally optional room. It's such a subtle yet beautiful way of showing that he loves you.

A few tears were shed. It was a great reward for being so thorough in reading all of the flavor-texts throughout the game.