I think the “most truthful” thing encompasses the games too. It comes across as “whatever the players do is what is canon to them” and “along with the games” means things alongside the games, not the games themselves.

Kinda like the game manual saying x character was killed in the previous game or something but you as a player never let that happen. Your canon is the true canon, not what is written.

That sounds much more like a todd thing to say.