https://github.com/dotnet/aspnetcore/blob/913ff28b8e834b51ded284118accebdaf85697a9/src/Hosting/Hosting/src/Internal/HostingApplicationDiagnostics.cs#L105 `_logger.IsEnabled(LogLevel.Critical);` condition is always `true` when using Serilog. Previous issue about None closed with filter workaround, but it's not applicable here.