Spoon feeding. Oh that’s a tough one. The ones I’m thinking of rely on creating stuff on the spot rather than coming to grips with an existing canon. So, like, the Fronts process for Space Wurm vs Moonicorn, in which everyone buys into a bespoke space opera setting. Or the Spout Lore move in Dungeon World.
I really like the lore sheet idea in Weapons of the Gods, too. Spend XP to buy a sheet, and that sheet is now part of the world.
Hm. Oh the phases of Montsegur 1244 where you stop to introduce the basics of the Cathar faith, and then again about the Perfects in the Cathar Church and how they work.
But the Montsegur 1244 solution reminds me of the players who kind of hate learning about performance-critical details after the game has started. I don’t think it’s a huge problem, but I know some folks prefer to know everything so they act “correctly” from the very beginning. Which I think is very much the Glorantha problem, yeah? If everyone can set aside the impulse for “correct” play, you could so easily introduce interesting details as you went.
Or Glorantha ceases to be an established canon, and instead is a set of values: there are cults, there are religions, there are races, but it’s on the players to create their Glorantha procedurally through play. Which probably misses the point for most Glorantha fans who are all-in on the shared canon.