Not with the app, but if you crate a home screen shortcut to the LAN or Cloud link via mobile browser. That will make it go right to the dash in full screen
I have two dashes (on my phone), and created a shortcut for each on the "home screen" for quick access. I also have a 3rd that goes to the hubs IP for "field testing" (setting up or adjusting a device).
You can set it up several ways here's one. Open the app, and clicking full screen button
Then click your dash to open in in Chrome (or default browser), click the 3 dots and then "Add to Home Screen". Doing this will remove the URL header, and the Hubitat footer, to give you a much cleaner looking dash with one click access