Have you played any of the DLCs? The Prompto one gives you lore that really should’ve been in the main game and the Ignis one gives you an alternate ending that’s really touching. And the Gladi one gives you a topless outfit (very important).
Also the final dungeon is the most absurd thing I’ve ever played, I can’t believe I’ve never heard anyone mention it! If you don’t know what Pitioss is, you gotta discover it for yourself. It’s absolutely ridiculous, an utterly deranged choice in a game already full of them. 15/10, wouldn’t change a thing
You can play the dlc whenever, even before the main game if you feel like it. Does it work if you go to the store directly from the game’s title screen?