At first I was a little concerned when I saw Notions "block concept" and it doesn't feel as snappy as Bear because of that, but the way you can start a new related document super easily from each block is just really good. The Search is amazing, changes are insta-synced between devices (like... live as you type) spending a little time on cards makes your doc look pretty good (if you care) and the share-options are all I ever wanted.
I also like the separation of "daily notes" and your regular documents. With Bear the sidebar always feels a little messy (despite pinning), but if daily docs are moved to a separate area that is ordered by time, it cleans up the "stage" for my more important, long-enduring notes.
I just spent about an hour testing the waters with Craft, but this is love at first sight so far!