I haven't used Java for decades and never used .net so I'll take your word for those. Absolutely not for C++ though.

Go's standard library has:

• JSON, XML, etc.
• A web client and server
• Bigints
• Logging
• JPEG, PNG and GIF
• SQL client
• SSH client
• All the crypto algorithms
• Gzip, zlib, deflate, etc.

C++ has none of that. Hell C++ only got a function to check if a string starts with a prefix a few years ago.