Maybe this is why I've only ever connected with Fallout (3/NV/4) and Borderlands 2... you just jump in and start doing shit. Maybe you follow a quest... maybe you go run over to that mountain to see what's there. When I got bored in NV, I went into the casinos and played blackjack. When I got bored in FO4, I built shit, and found the settlement size limits. When I got bored in Borderlands 2, I went and took another crack at the fucking worm you apparently aren't able to kill without a team. Or jumped in a car and just blasted around the landscape like it was a race track. When I got bored with Fallout 76, I went back to FO4. I can't imagine grinding away in new games. Why is that fun? I play games maybe 2 hours a week, spread over 2 or 3 sessions... and some weeks don't play at all.
I always spend way more time tinkering with games than I do playing them. I never got around to doing the main quest in Skyrim, but I spent a ridiculous amount of time playing with the AI so I'd be able to send zombies to clear out all the monsters and traps in dungeons and gather crafting supplies for me. Out of the box they were too dumb and that annoyed me, by the time I was finished they were smart enough to play the game for me and there wasn't anything left to do.