I have just upgraded my Nextcloud from 23.0 to 23.0.1. This update has broken the built-in Collabora Online for me.
The apps for Collabora Online and the Built-in CODE Server are the latest versions ( 5.0.1 and 21.11.103). They also were not changed during the update.
Before the upgrade everything was working fine and clicking on an odt or ods file opened the build-in collabora for editing. Now it instantly opens the dialog of my Firefox for saving the file.
The “Nextcloud Office” settings say that the Built-in CODE Server is reachable.
Switch to “Use your own server” in the “Nextcloud Office” settings, hit “Save” and wait untill it switches back to “Built-in server”. If it doesn’t switch back automatically, choose the “Built-in Server” manually and hit “Save” again. After I did that on my test instance, it was working again. Hope that helps…
This has worked for me. I set the server to the public demo server in Ireland, opened a pointless test spreadsheet afterwards and the online office opened again.
Set the server back to bulit-in afterwards and it’s working again as it was before the upgrade.