I haven't followed Logseq much since they announced the move to a database. I liked the idea when it was a regular open source project. They've taken a considerable amount of money from outside, they're moving from plain text files to a database, and they're planning to monetize by selling sync features.
We've been down this road, I don't know, maybe a few thousand times before. We know how this story ends. Heck, we could write the blog posts and the defensive comments about sustainability, running a business, and all that jazz right now.
(This comment is not a request for a lecture on how business models work. I understand how they work, and that's the point of my comment.)