I recently tested out AFFiNE and really like their approach on infinite canvas, basically page and whiteboard are the same and users can switch view mode to fit their need.
Back at Logseq, even though I love the current whiteboard feature, I rarely use it because I can’t turn it back to a normal document. I wish there was a way to easily switch between the whiteboard and the document mode so that users can enjoy both the flexibility and the structure of the app.