The reason c# has such a weak open source system is two fold. Supply and demand. From a supply stand point source enthusiasts have historically hated Microsoft.

The reason c# has such a weak open source system is two fold. Supply and demand. From a supply stand point source enthusiasts have historically hated Microsoft. From a demand standpoint everyone uses the Microsoft variant because it's easy to use and hire for. There's a ton of documentation. Lots of issues are at the seems of different libraries, applications or frameworks you use. And in the Microsoft world it's frequently all the same. Everyone uses the same identity library, the same webserver, the same cloud, the same database, the same orm. If you're into learning technology it's not for you. But if you're into learning about domains and business instead of tech or like having free time it's a great stack. Doesn't work well for b2c because of the cost, but works really well for b2b.