Review naming recommendation for fields

Right now our naming standard (Underscore + CamelCase) differs from the more common (Underscore + PascalCase).
Following our guideline is now getting flagged in Visual Studio due to new .editconfig defaults.
https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/naming-rules#rule-id-ide1006-naming-rule-violation

This can be mitigated by adjusting your editorconfig, but requires someone making a change from the default.