For me there are a bunch of different kinds of looking stuff up as well. It’s almost all valuable though.

Sometimes there’s highly specific - reading the docs.

Sometimes it’s adjacent or wildly different technology/concepts.

Sometimes it’s thinking about a side project or making a toy piece of software to try something out, and the reading that goes into learning how to do that.

Equally just browsing HN and others.

I find there’s a lot of learning by osmosis that’s necessarily not measurable/quantifiable.