What more would you like to see than what Jaeger provides?
Jaeger is used for traces between distributed systems (external)
Traditional APM products are internal traces
AFAIK, You can have internal trace markers, not just between apps. I've used that (for Jaegger) in one of our Windows Application to see the call-graph (it's a level editor for our game), and it was tracking the loading of various resources across multiple threads, then it was visualized with jaeger and even zipkin.
The Jaeger integration is a good step in the right direction though, kudos!