Scenes are…  scenes NEED to be defined differently in different games, even if only implicitly (the important thing is to be able tu understand how to play them from the rules)

For example some games require a following scene to be in a different place, others not. Some games give a specific player (usually called GM) the right to close and frame scenes, others give this responsibility in rotation or randomply or by request or by biidding or to everybody or in any other way)

So, even if you could show a game where “scenes” are explained perfectly… it would not mean that the same explanation would be good for any other game.

Most of these game mechanics are based on a general concept, though: the “scene” in a movia or a novel. That knowledge should be shared by people who play the game. THEN you can explain that in game A the GM close the scene, in game B the scene end when you leave the room, in game C the first conflict end the scene, etc., but if you have players that say that they don’t know what a scene is, and they are talking about the concept, not the specific game mechanic…  they are shitting you, or they are so foreigh to the though to seeing a movie or reading a book, to be literally too illitterate to play a rpg and not a wargame.