Sometimes IT is a funny thing… apt purge php8.2* was the key. Server is running again without any errors, php8.4 is recognized by nextcloud, couldnt be more happy.
thanks a lot for your great and patient help 
Sometimes IT is a funny thing… apt purge php8.2* was the key. Server is running again without any errors, php8.4 is recognized by nextcloud, couldnt be more happy.
thanks a lot for your great and patient help