Nextcloud not showing as selectable option in file picker #17908

Ran into a problem with external app access when trying to import a backup file into a Firefox extension:

1. open Firefox > ... > Extensions > uBlock Origin > Settings > Restore from file... (at the bottom)
2. in the file picker open hamburger menu at top left
3. many apps like Galleries, Google Drive, File managers and more do show but Nextcloud is absent

Unsure if this is expected or not, but the fact that Google Drive shows up indicates that Nextcloud should be on that list as well. Is this something that needs to be addressed in Nextcloud, Firefox or in the end Android? 🫪

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