Which game did you quit after many hours because it was too frustrating?

Like the title says. Which game, that you played for a long time, did you quit or not finish because it was either too grindy, you had a boss fight that was too annoying or you quit out of a multiplayer game because...theres enough reasons lol

I quit AC Valhalla after like 20 or 30 hours although i liked the world and the gameplay, because everything just felt meaningless.