I did wet and dry work in my PhD and before, and found a paper notebook to be incredibly inconvenient. Finding things, referring to things, including data or code - all very laborious if it's even effective. I can imagine keeping thoughts or notes like this, but not my lab book.

I use monthly markdown files where I can link out to code, commits, issues, include figures etc.

I found the opposite to be true - electronic lab notebooks were almost immediately abandoned, or in one case turned into an illegible wall of madness.

To each their own I suppose.