How complete is each NF and inter-NF interation?

Hi, I want to have a big picture of how complete free5gc is. I know it can allow UE to access internet. Other than that, how much interaction between network functions does it support? Which part of the 3GPP specification are implemented?

Accurately we’re are also interesting about how complete are our implement. Can you provide how many feature defined in 3GPP of each NF?

By the way, due to some of the features are only half-implement, the best way to check the feature is to trace the source code. Fortunately, the source are all opened on GitHub.