For some reason as soon as I get to the “end” of the game, I completely lose motivation to play. This happened with DOOM: Eternal, Sekiro, Bloodborne, Paper Mario TTYD, Cassette Beasts, Shovel Knight, Oblivion, Baldur’s Gate, God of War, Mass Effect… Pretty much every game I’ve ever played. It’s like the fun part was the journey, and I’ve seen everything the game has to offer, and I just don’t really enjoy the ending process. Feels like a formality at that point.
You don’t want it to end.
It’s kind of like that for me. If I never finish the game then in a few years later I can go “Hey, I never finished game X. Time to play it again from the very start!”
It’s not quite that, because if that were the case I’d just start a new save file or go do all the side quests. Instead I just stop playing forever