For me I dunno if it's more agency or just more difficult to stay entertained. I used to play world of Warcraft for ten hours marathons on summer break. Same for counter strike, half life deathmatch... Hell even single player games like ocarina of Time would take me months to get through because chopping down all the signs in the beginner area, leaving, coming back, and doing it all over again would be enough "game" for me.
Now I barely touch games... Can do about an hour and a half of tv or movie max (barring good 2h+ films). Multiplayer games I can do maybe an hour or two a couple days a week, more if we're in the same room.
I mean I watched Alladin every day for a good few months once. I'm typing this out because I got distracted from Netflix just now. Something's different about me, I wonder if it's true for others?