You're right, I kind of missed/ignored the point about narrative-heavy or not. I was thinking more about the rules load. However, most of the games I mentioned aren't inherently narrative-heavy (though I guess pbtA is); you can sit down and play Troika or Warlock just as casually, with no great need for narrative investment. If we're talking about Fate and D&D, I agree: You can't really play Fate without having to think constantly about the interaction between metacurrency and narrative and what's on your character sheet. But with something like Warlock or Barbarians of Lemuria, or, I'd dare say, even Freeform Universal, you can show up, roll your attacks and do your occasional cool stunt just well as with D&D. And if you feel you don't need the slightly more complex bits from 5e, you might be just as well served with one of these games.