Again my experience with local schools doesn't match that, though I'd acknowledge that local authority can cause a lot of differences. And I'm talking about state schools - not public schools. Remember that means a very different thing in the UK, and might suggest your own distance from the claims you seem to be making.
And googling only seems to find examples of the low income programmes. I struggle to find a single instance when devices are handed out to kids and not keep at school and only used in specific tasks - like the old trolley of laptops was a few years ago.
Or breathless reactionary commentary without any actual examples of course.