First cut at the "io_uring and networking in 2023" is now available below. It attempts to highlight some of the features and optimizations that were specifically tailored for networking workloads:
https://kernel.dk/io_uring%20and%20networking%20in%202023.pdf
Feedback welcome!
If PDFs isn't your thing, I also made an attempt at putting it on the github wiki:
https://github.com/axboe/liburing/wiki/io_uring-and-networking-in-2023