For me it completely depends on the style of game. I get much more involved in a tight, story focused game which is less than 20 hours than massive open world games which can take 80-100 hours to complete.
Games like God of War, Plague Tale, Last of Us I've played regularly until the end, whereas I've dropped off Death Stranding due to the sheer size of it, even though the story and gameplay intrigues me.
I also love those 3-4 hour simplistic games like Inside, Limbo, Little Nightmares as they're engaging but not overwhelming.