Combination. I use a Paipur notebook for physical notes. Slightly larger form factor than a typical Moleskine but very good paper quality still.

I used Ulysses app for years for journaling and note taking etc, and I loved it, I but don't like the fact they've switched a subscription model so I now use Emacs in combo with GitHub.

Something that I tried years back and it worked quite nicely was sending myself emails - it sounds sad but you get auto-archiving dates and all the benefits of the email app/web app (search, labels etc.). Tempted to go back to doing that frankly, but got into the habit of using Emacs now.