The official apps by Nextcloud should not have the same requirements? Just to understand how works for this has, I don’t see any alerts about an app that uses an unsupported php version in the dashboard.
It is what it is. If something isn’t updated all we can do is report it and wait for a fix. If it is critical just stay on the older version 22 while you wait.
Same is true for php 8. If it causes problems stick to the earlier 7.4 release. Just backup before updates and rollback as needed.
So looking at your ticket there are various pull requests in queue to get approved since a lot of months to release the new version.
My provider doesn’t allow switching to a previous nextcloud version or to change the php version, so I am blocked…
Gotcha, then your provider will need to take action to get saml working again with a supported version of PHP on a supported version of nc. You’ll want to follow up with them directly and ask they address it.
Assuming this functionality is something you pay them to provide you. Different providers offer different nextcloud functionality. Some even have support contracts with the nc dev team. I’m a volunteer.
Hopefully your provider is helpful and responsive! Good luck.