Pretty sure most things are stored encrypted/delivered encrypted only to be decrypted and rendered on your phone. Meaning Apple/your provider have nothing to give up for the hypothetical US government demand.
https://www.reuters.com/article/us-apple-fbi-icloud-exclusiv...
I haven't heard of any changes to this to-date.
https://support.apple.com/en-us/HT202303
That seems pretty clear to me, but maybe it’s misleading?