I used to use OneNote with the Microsoft Pen (or is it Stylus? I forget...) to take notes in this fashion. Eventually, though, there are only a few cases, like large diagrams that you need to evolve over time, where a digital solution beats a paper notebook. The need to start and unlock the computer/tablet if it's not already on, to dismiss or ignore notifications, to launch the app, to select the right color or tool and the occasional glitch when writing (pen sometimes not writing, or suddenly jumping to a completely different place, even deleting old lines when drawing new ones, I feel like I've seen it all) add up to more friction than a paper notebook.

My notebook, which I use like a Bullet Journal, has no batteries that need recharging, no screen that can crack, no notifications, the pen has an ink capacity of over 2 years of daily writing, with a new recharge costing ~6€, no software updates.

There's no search, and occasionally I do flip through the pages longer than I'd like, but it's rare.

Nowadays I mostly write in my paper notebook, and if there's something in there worth keeping, I upload a photograph of it in Notion.