World of Warcraft. 12 years of playing and raid/guild leadership helped me learn how to play, not just play. How to:
Theorycraft
Research how to improve
Maximize output and/or efficiency
Take advantage of class synergies in games
Understand the importance of area of effect, burst damage, sustained single-target damage, etc.
Understand damage mitigation vs avoidance, and where each is valuable
Play to my/my team's strengths, rather than simply doing what is "best"
Better recognize trends in game mechanics to anticipate what may come
Recognize the valuable portions of a game's user interface and maximize its visibility while avoiding clutter
I had learned portions of these things in other games, but my leadership role in WoW pushed me to truly understand many things that aren't a major focus in most games.
Does anyone younger than a boomer even care about hair color? I'm 37 and while pink hair might stand out to me, that's only because of the rules written by those with sticks up their backsides, half a century ago. Ultimately, I don't give a damn.
I'm on vacation, so I've returned to my default Steam Deck game: Wildermyth. I love its storytelling, particularly with carrying characters over from one campaign to another. I've grown particularly attached to the warrior from my first campaign, now fully fire-transformed. However, he's moved on from his first love, who is now far too crow-like.
On the other hand, that taught me to use more than just quicksave. Too many instances of saving just before I die, setting me back hours.