I'm in total agreement. I'm often saddened when the response is trying to be compact, and like line by line replies to comments.

I have really taken to viewing it like a review on a PR.

The Combining Lock builds a simple version of Flat Combining into a C++ class. We built it to improve the start-up time of snmalloc in high-thread workloads.
There is some fairly accessible documentation about how it works here:

github.com/microsoft/sn...

The BatchIt work significantly improves message passing like work loads in snmalloc. It was designed and built by @qedragon. The design appeared at ISMM'24 this year.
www.youtube.com/watch?v=M5KX...