>Why can't companies these days just print a shop manual and be done with it?

They would be losing money without overpriced repairs. That's why they lobby so hard against right to repair.

Even with some kind of right to repair it still seems they're trying to keep you hooked on their resources.

But as you said, service manual + schematics would be great for some people. But companies will fight tooth and nail against it. They lose control over obsoleting older products.

How did you come to the conclusion that they would lose money without repairs? I can't find any specific breakdown of their revenues for that segment.