Nextcloud desktop window won't open

[Thatoo]

Describe the bug
Nextcloud sync app is installed. Sync is working and the setting window would open.
However, the main window won't open so I can't add or remove account.

To Reproduce
Steps to reproduce the behavior:

1. Open nextcloud sync app
2. Click on the notification tray nextcloud icon
3. click on Open Nextcloud Desktop
4. Nothing occur

Expected behavior
A window like this one should open :
https://github.com/nextcloud/desktop/raw/master/doc/images/main_dialog_christine.png

Desktop (please complete the following information):

• OS: NixOS 25.11