Echoing the long-standing issue raised in Unity Discussions, and a workaround found on GameDev StackExchange, I've created a simple tool to automate the application of this workaround en masse to all asmdef found in Library/PackageCache. It also have an option to run upon Domain Reload.
https://github.com/laicasaane/UnityXmlDocGenerator
#XML Documentation Generator
outer palm
Without XML documentation for Unity.Entities:
