Stephen King - what am I missing?

Some writers, for whatever reason, just aren't my cup of tea, SK being one of them. I've made my peace with it and moved on, plenty more to choose from!

I really liked " Billy Summers", which is a crime story rather than horror. I liked Mr Mercedes trilogy as well. The TV adaptation was great but the opening scenes were some of the most memorably horrific I have ever seen, so be warned. As a side note the actors ( especially Brendan Gleeson) were excellent.
Try some of his short stories maybe? I can recommend Different Seasons, Nightmares and dreamscapes and You like it darker.

I've only read Misery and The Shining. In The Shining I did enjoy the way he explored the main character's inner battle with addiction and trauma but I would've preferred it without the supernatural elements as it just doesn't do it for me. I prefer to think of it that Jack went mad with self hatred because he was a failure and abusive drunk like his father rather than that he got possessed by a haunted hotel.

Loved Misery although I did skip through the extract from 'Misery' and the newspaper clipping because I got the point after the first few and impatienty wanted to get on with the story.

Next in line is Dolores Claiborne so I'll see how I get on with that before deciding how far I want to go through all 60+ of his novels!

I've been reading Stephen king since I was a teenager. Love the really early stuff. The life of chuck I found surprisingly moving...... He's still got it ❤️

I love King but I can't get into the "Holly" series at all. I found some of the books after his accident a liitle off but then he got his vibe back for a while. If he's not your thing why persevere?

You aren’t missing anything. He’s just not your cup of tea.

I think some are better than others. I am not a big fan of the movies you mentioned (except Misery which was great).
I read a couple of books - can’t remember which now so I probably didn’t like them that much.
But have you seen Life of Chuck, currently on Netflix? Just beautiful.

And I just started reading ‘Later’ tonight, by chance. I was hooked straight away by the narration.