Implementing known solutions is less thinking and more typing, but on the other hand it feels like CoPilot and so on is changing that. If you have something straightforward to build, you know the broad strokes of how it's going to come together, the actual output of the code is so greatly accelerated now that whatever thinking is left takes a proportionally higher chunk of time.

... and "whatever is left" is the thinking and planning side of things, which even in its diminished role in implementing a known solution, still comes into play every once in a while.