Use Open with Pagira from Files or another app, navigate with a real toolbar, and find your recent items waiting at launch.
The biggest obstacle to local reading on iOS is not the rendering, it is the access. A file arrives by email, by AirDrop or from a drive, and the question becomes how to open it with the right tool.
Use Open with Pagira from Files or from any app to open a site or a PDF. No import step, no copy to organise: you start from the file where it already is.
A bar gives you back, forward, reload and the title of the current page. That is what separates reading a site from displaying a file: you move through the content instead of putting up with it.
Recently opened sites and PDFs are remembered and one tap away from the home screen. Picking up yesterday's work does not mean finding the file path again.
A setting reopens your last item every time you open Pagira. For a documentation set you consult all week, that removes the navigation step entirely.