Trying out the Experimental / Lab feature here, and it’s quickly obvious that Visual Dataflow has disappeared from the right sidebar. I like the quick access to the Attachments and Keyboard Shortcus, but sorely missing Visual Dataflow: I used it quite a bit to quickly navigate notebooks.
If this is already being worked on (ie a one-click icon on the right sidebar to bring up Dataflow) then disregard this!
Best,
Joses