I'm a big advocate of profiling and have used a bunch of profilers, one of the things that is commonly overlooked in the .net world is a good presentation of async call chains. I think SuperLuminal is currently the best accessible profiler that shows async though I've not gotten to play with it myself.

How well does Ultra show async methods and general multi-threaded interaction?
and given that it uses a pre-existing tech stack how much flexibility is there in the UI side of things?

Presumably the ETW service is the limiting factor here?

I would love an easy profiler recommendation for this that I can share with people so they understand the importance of good profiler tooling and a good workflow. Certain gaming consoles have good profilers that show async dependencies for C++ but that's all NDA and can't really be used as an example for what is possible.