15 hours is my limit.
This is one of the reasons I hated Death Stranding. At 40~50 hours for the main campaign alone, the fun per minute ratio is greatly diminished.
I'd rather play a replayable 15-hour-or-less game: The Wonderful 101's campaign is 12~15 hours, but I have close to 100 hours in the game and the fun per minute ratio is much higher than DS.
I also don't predict I'll stop revisiting The Wonderful 101 any time soon; whereas, I have no intention to touch Death Stranding again past the 100%.
Another example: it takes 30 minutes to 1CC Crimzon Clover, and I've had more fun in the ~25 hours I spent playing this game so far than all of my time in Death Stranding. Every second is fun, no filler. I love that.