As far as i know, DMR is a way more open standard compared to the Security thru obscurity from Tetra (as Kerckhoff intended), it should be rather save unless someone actually manages to break AES-256 (claims have been made about that recently tho that it could be possible for state Actors in possession of Quantum Computers, if that is fiction or reality is up to the spooks).
Are there any opinions on DM-32UV Encryption to be overhead?
As far as i know, DMR is a way more open standard compared to the Security thru obscurity from Tetra (as Kerckhoff intended), it should be rather save unless someone actually manages to break AES-256 (claims have been made about that recently tho that it could be possible for state Actors in possession of Quantum Computers, if that is fiction or reality is up to the spooks).