https://www.photosforproton.eu/#features

hire this guy and iclude his app to proton. he made an app with following features:

A native Android gallery.
Your whole library in one place, with a timeline, albums, a calendar, favourites and search.

One timeline of your device and Proton Drive photos, merged and shown once
Albums, favourites, a calendar view, and per-folder browsing
Fast search and filters by type, date, place, and people
A photo map of everywhere you have been, plus a globe
A built-in photo and video editor, and a home-screen widget

and more.... and for windows