For me that has changed over the years.
Before CP 2077 my most played story driven single player game was the Deus Ex (2000) that I played through three times. It was not like with CP 2077 there were years between returning to it. Then at some point, if I came to think about it I just ended up listening to the soundtrack from youtube.
I think it had a system that made sense, it didn't feel something convoluted you needed to pay much attention but just kept focus on other game play and story aspects. Characters made sense, they had motives that made sense, they weren't always super evil nor good, Maggie Cheung(?) being a good example. There were different ways to solve scenarios game threw to player. It had great atmosphere and somehow paradoxically managed to be more than a sum of all possible things that were used to cook its main plot. I think it's also prisoner of that paradox, formula can't deliver more, yet it should deliver more to meet expectations.
CP 2077 became my most played single player story driven game because it felt like good cyberpunk novel or what makes a good novel or movie, tv show, something I reread or watch again, it has intellectual aspects that I can continue to explore in real life. Though it was convenient that I had way too much free time during worst of the pandemic, but it was not time wasted for something that's a dead end. I think huge contributor was also that it's easy to access, character adapts to playstyle, I don't need to think about it too much and especially in early versions of game, not sure about current, playing on normal, I could focus on story elements and forget about the loot and that.
General rule is, did this work, regardless of medium, contribute to know understanding of the real world, did it make something easier to make practical applications, those sometimes being thought exercises, being able to communicate different kind of matters in more efficient way and CP 2077 has all that.
It's a bit sad that, as far as my pattern recognition goes, tried all kind of things during pandemic via Xbox Gamepass, direction game and most likely franchise is taking just make sense economically as certain features just don't work for someone like me, but at the same time, I sure as heck got return to time spent with product already.