I've been waiting for those wildvine keys to leak which would finally let me choose what to play my stuff on. But it still hasn't happened. They are getting better at secrecy sadly.
Since Widevine L3 is completely implemented on software, there are tools you can use, but L2 and L1 are have hardware components, and secure enclaves are hard to break. Up to par ones have self-destruction mechanisms which trigger when you bugger them too much.
On the other hand, there are 4K, 10bit HDR + multichannel versions everywhere, so there must be some secret sauce somewhere.
This is not a rabbit hole I want to enter, though.
