I tried using Bullet Journal for a few months this past year and what I loved most was the modularity in it. It was easy enough to use it month to month and let it evolve versus diving headfirst into the massive world of it. What worked out best was the index piece of it by making it easy to flip back through your notes.

Where it fell apart the most for me was on weekends when I wasn't working, or with a notebook all the time. So I'd just end up opening my phone and then forgetting to move the notes over. And vice versa, if I forgot my notebook I wouldn't have my notes on me.

I've been trying to find a digital solution that lets me keep a notebook at work and easily put those into digital tracking. The closest I found was Agenda (https://agenda.com) but it's kind of over engineered for my needs. I know Notion is well liked, but again it's overly complex for my needs.