There are several logging libraries for .net as well, microsoft even lists them: https://learn.microsoft.com/en-us/dotnet/core/extensions/log...

Libraries getting swallowed up is not so bad as it sounds. For instance for web frameworks there was a phase of experimentation with projects like Nancy that inspired changes for asp.net core. There is still alternatives like fast endpoints.

Also you have things happening like integrated system.text.json replacing newtonsoft.json that over time took on some cruft.