Shared files displayed in external WebDAV client but not in the NC 25 web app

Nextcloud version (eg, 20.0.5): 25.0.0
Operating system and version (eg, Ubuntu 20.04): Arch Linux (all packages up-to-date)
Apache or nginx version (eg, Apache 2.4.25): 2.4.54
PHP version (eg, 7.4): 8.1.12

The issue you are facing: After upgrading to v25, the /Shared/ folders of all users are displayed as empty in the web application. When using an external WebDAV client, the files in /Shared/ are displayed as expected (i.e. all files shared with a given user are displayed as before the upgrade from v24).

Is this the first time you’ve seen this error? (Y/N): Yes

Steps to replicate it:

  1. Upgrade from v24 to v25
  2. Open the /Shared/ directory of any user
  3. The directory displays as empty when using the web client