Fully qualified type names make code blocks hard to read

### Describe the issue or suggestion

Please take a look at the code blocks on https://learn.microsoft.com/en-us/dotnet/api/system.linq.queryable.leftjoin?view=net-10.0

Those are way longer - and therefore harder to read - than they need to be because all types are fully qualified. Please reduce type names to their names only in code blocks.