Not disagreeing with you necessarily, but ADHD also fits the bill. I’m very much a happy person at the moment, I wouldn’t change anything in my life, yet I subscribe to what OP says. Games are too long, too boring to grab my attention long enough.

I managed recently to complete GTA V because I found the story hilarious, and I only managed that by skipping all side missions. That’s the only long / AAA game I’ve managed to finish in recent years.

What helps me is understanding that if I get 5h of enjoyment out of a game rather than getting to the intended 50h playtime, that’s also valid. 5h of fun also counts as fun and this is a game, not work, so there’s no pressure to finish it.