I think the recent changes that hide the stack of panels on smaller screens is a great addition (make using fibery on phones and docked to the sides much easier).
However, I was wondering if it would be possible to add a menu option to still be able to access/jump to open panels. I’m thinking it would be something like the browser tab list or back button history list. Otherwise, currently you have to progressively close each panel to get to the panel you need.