For those interested in Middle-Earth: Shadow of War, the real ending to the game is currently rumored to be tied heavily into the game's microtransaction system.
Based on several reviews so far, the game takes roughly 40-50 hours in order to get the real ending and the final act is grind-heavy likely in order to entice players towards purchasing lootboxes to speed things up.
https://aotf.com/news/shadow-of-war-true-ending/