What actually is "uppercase snake-casing"?

### Type of issue

Missing information

### Description

Is it LIKE_THIS, or Like_This?

Judging by the question and answers here https://stackoverflow.com/questions/17326185/what-are-the-different-kinds-of-cases there is some disagreement about what to call most styles. For all of the options, it would be useful to have clarity.

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.text.json.jsonnamingpolicy.snakecaseupper?view=net-8.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Text.Json/JsonNamingPolicy.xml

### Document Version Independent Id

d73e9363-7e8a-6941-dac4-1a1e8b2b9c8f

### Article author

@dotnet-bot