First of all, I love Beorg and use it every day! You're doing great work.
Would it be possible to add a search box to the Files view, to quickly filter down to just files whose names match the search string?
I have ~200 org files (in particular one per person that I interact with regularly), and it's very cumbersome to have to scroll through the whole list to open a particular file. This is especially hard when I can't remember the first word of the file name, which means I have to scan every file name.
An alternative would be to have an alphabet jump list like in the built-in iOS Contacts app, but a search bar would cover more use cases.