I can page through a web page like a book (Page Down/Up keys or spacebar) and I also can search it and jump immediately to arbitrary keywords. Being accustomed

I can page through a web page like a book (Page Down/Up keys or spacebar) and I also can search it and jump immediately to arbitrary keywords. Being accustomed to that, I now find reading textbooks or similar to be incredibly inconvenient and non-natural despite remembering well a time when digital texts were relatively uncommon. If I know what I'm looking for, a half-assed index and skimming doesn't cut it. I want to jump right to the relevant information.