Here: https://www.forbes.com/sites/tjmccue/2019/03/19/47-percent-o...

And this is 2 years ago so I assume it's even higher now. It's a lot more than I expected for sure. They only count consumers though.. Perhaps companies don't always allow it, but I always use uBlock at work.

That's surprising forbes has an article like that. It's one of the only sites I've opened on a modern iphone that made it uncomfortably hot.