Any great Unity 2019 networking demos or is this the transition version?

Any great Unity 2019 networking demos or is this the transition version?

 

I haven't tried it out, but this is supposed to be the best demo of the new networking system:
https://unity.com/fps-sample

The new networking API development has been pretty slow moving (supposedly in development for what, a year now?) and the released alpha is not much more than a simple transport. To give the benefit of the doubt, I'd guess they have moved their focus to the DOTS version of the networking system.

 

Sadly the FPS Sample is a bit out of date.
A more "complete" version of Netcode is found in https://github.com/Unity-Technologies/multiplayer/tree/master/sampleproject/Assets/NetCode
There was a new commit some days ago which is very interesting.
Personally I'd really like to use it as I'm a big fan of how the FPSSample netcode works, the replication system and everything in between. I think it's great and miles ahead of any other Network framework. For my prototype I was looking into Mirror and while that certainly does the job, the underlying Netcode is what makes me not want to use it, same as with every other framework, HLAPI and so on. Basically Netcodes that don't handle synchronization and client side prediction is a waste of time in 2019 in my opinion.