By any chance do you know whether V2 has an endpoint for bookmarks?
There doesn't look to be.
I think it has been updated in the last few hours - they've added a link to a trello board created 4 hours ago, and I don't remember a [COMING SOON] replacement for home timeline being there previously. So maybe they're going to add more endpoints than currently exist, but it'll take a lot to not have people worried about another rug pull.