Celebrating my 6-month anniversary, congratulations to Anytype! You have successfully become the longest app I have used consistently for note-taking. 
I have created ~3000 objects in Anytype. No synchronisation problem, no lag problem.
As a heavy relation user, it usually takes 5-7 seconds to load the whole graph. I have to use maximise zoom out in both Anytype and system and it still don’t show all nodes. Considering everything needs to be decrypted, I would say Anytype manages it quite well so far.
Still waiting for Obsidian import to have an import that brings in more workable links.