Confusing HttpClient guidelines

### Type of issue

Missing information

### Description

Under recommended use, there is different advice for .NET and .NET Framework. Both emphasises reuse of connections, e.g. by using IHttpClientFactory.

For .NET another recommended approach is by using a singleton HttpClient. But I do not understand how that approach is specific to .NET. Why is this not recommended for .NET Framework? Considering most legacy .NET Framework apps do not use the asp.net core dependency injection library, rolling your own singleton should be much more straightforward.

### Page URL

https://learn.microsoft.com/en-us/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use

### Content source URL

https://github.com/dotnet/docs/blob/main/docs/fundamentals/networking/http/httpclient-guidelines.md

### Document Version Independent Id

3b1dd30f-82a8-2526-bd51-fb6401c52e81

### Article author

@gewarren

### Metadata

* ID: 1a42e9c6-2624-e047-ed1c-03ec047b538a
* Service: **dotnet-fundamentals**

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