Brief Summary
I would love to see a design/redesign of the sidebar in Orion on iPadOS that better matches what's available with other iPadOS apps such as Safari, Mail, Notes, etc. While the current tab view style in Settings > Tab View Style > Tab is fine, it seems to fit more for iPhone than iPad.
Details:
I'd love to see something that combines the design of Safari's sidebar with what we have in Orion on Mac:
I'll see if I can create a mockup later, but this would be triggered with a sidebar button in the toolbar (like other iPadOS apps that support collapsible sidebars). I haven't seen an iPadOS app that allows for a more flexible sidebar like in Orion on Mac currently, and that might need to be explored, but I think for this first iteration, it could be closer to Safari's with a static, structured system.