By going to app info we get the clear storage button using which a user can clear the storage of that application. In AMAPI do we have any policy using which we can stop user from clearing the storage of any particular application.
FORCE_INSTALLED install type does not work.
Preventing users from modifying application data from Settings app, such as clearing the storage of a specific application, is currently supported for KIOSK apps only. The team is currently investigating similar feature requests and we will consider this feedback for prioritization.