Practically, digital is much better. Everytime I see something that might be useful I past a link. I paste links to discussions I need to follow up on. And then I also use a homemade plugin for Obsidian that lists my to-dos across all notes(1), so whenever I think about something I need to do I just include it directly into the text and it's listed there.
I think you could do something somewhat similar on paper (I tried a while back), but the overhead is simply too much for me.
I know a lot of people will say to do digital for ease of searching. I find that if I write it down, I'm much more likely to remember and not need to search in the first place. And digital I think it's easier to get lost in the ways to try and optimize the process with a file, format, editor, plugin, method, etc. With paper, I have some paper that I can write in whatever format I want at the time.
I use these every year for taking notes: https://www.leuchtturm1917.com/weekly-planner-and-notebook-2... . I've been using the A5, but will probably go up to the B5+ for next year. I've been using these for the past 7 years.
The analog camp, solved this, each in their own unique way, but all using the same tools (pen and paper). Its much quiet here, as we all have moved on to real problems.
Apple Pencil & iPad works fairly well, but the multipurpose nature of the device often means that I need to navigate back to my note taking app.
Typing things into a log (for me) effectively pipes it to /dev/null.