They barely ever watch shows or play with the phones, and most the time just want to colour in, play with Lego, or play with toys. They use the phones maybe for an hour every 3 days or so (or if we're waiting at the Doctors office or on a road trip), and watch shows maybe half an hour to an hour each day (usually in evening when they're too tired to physically play and we're preparing dinner). YMMV of course.
I wonder if that robs them from the experience of ever being bored. And if that might influence them.
They're very imaginative, and we regularly find the eldest just sitting in a sunny spot in the room and "dreaming in the warm" as she calls it.
The only problem we struggle with as far as technology is that a lot of her friends already have unlimited access to TV and talk about shows she's never heard of because we don't watch (or have) TV. We purely do Netflix/Stan and YouTube, so she gets a bit upset not knowing what they're going on about, but she's starting to understand that everyone has different things they do.
Sorry if my comment implied I had kids, I do not. But in terms of access I see a lot of other comments further below talking about downloading everything locally and serving it through plex, which seems like a solid idea.