Hi,
had the same problem. Data Loss Protection in Restrictions only restricts open in options, not copy paste.
It is possible with custom setting profile.
The option is called require managed pasteboard which was introduced in ios 15.
Unfortunately it is still not transferred into the WSO Restriction profile.
The payload can be found here:
https://github.com/vmware-samples/euc-samples/blob/master/UEM-Samples/Profiles/iOS/Fall-2021/iOS15-R...
