Among U.S. K-12 teachers (Control+F knowledge) is around 50%, with huge variations by school district and location. As you’d guess, tech-savvy schools (districts) do reasonably well. But most of the U.S. is not tech-savvy. I’ve seen many cases where the lack of the ability to find a text on the web page leads to all kinds of scholastic hilarity.
Sad but becoming even more true. My one fear is that our reliance on technology as an Educational KEY is making our children into worker bees and far from independent thinkers.