A video game allows you to develop your skills and use your brain in a complex way (especially true of competitive multiplayer games). A slot machine is played by mindlessly pulling a lever.

To be equally reductive, how is any hobby more than playing a slot machine? It’s just pulling a dopamine lever.

I do not believe a hobby needs to yield social value. I believe it is sufficient to derive enjoyment from the activity itself. You don’t need to personally enjoy my hobbies, just as I don’t imagine I would enjoy yours.

Why do either of those things matter to you if the person in question enjoys them?