That’s not developmentally normal even for a tablet kid, fyi. I would help them seek immediate evaluation…

I have a family member who was a tablet kid when they were 8. However they engage with me, their favorite thing is to play the addictive tablet game in my lap and they love when I or others play it with them, especially if you make a story out of it. They watch way too much YouTube but they were delighted when I watched with them, we did thumbs up and thumbs down and talked about what we were watching. They love me and sadly are a bit attention starved but that’s a lot more normal.