When storing photos in regular Proton Drive folders, there is currently no useful way to sort them chronologically by the date the photo was taken.

Sorting by “Last modified” does not provide the correct chronological order, especially for photos exported from Apple Photos or imported from other sources.

Suggestion:
Add a “Date taken” sorting option for folders containing photos, based on the photo’s EXIF/metadata when available.

This would make Proton Drive folders much more useful as a simple photo archive, without requiring users to use Proton Photos.

For files without a valid date-taken value, Proton Drive could fall back to the file creation or modification date.