A rough example of how to use Serilog.Sinks.OpenTelemetry to send logs to Azure Application Insights

open-telemetry-config.cs

builder
	.UseSerilog((ctx, _, logConfig) =>
	{
		logConfig.ReadFrom.Configuration(ctx.Configuration, "Log");
	}, writeToProviders: true)
	.ConfigureServices((ctx, services) =>
	{
		services.AddOpenTelemetry()
			.ConfigureResource(res => {
				...
			})
			.WithTracing(tracing =>
			{
				...
			})
			.WithMetrics(metrics =>
			{
				...
			});
	})
	.ConfigureLogging((ctx, logBuilder) =>
	{
		logBuilder.ClearProviders();

		logBuilder.AddOpenTelemetry(options =>
		{
			options.SetResourceBuilder(ConfigureResource(ctx));

			options.AddAzureMonitorLogExporter(x =>
			{
				x.ConnectionString = "My App Insights Connection String";
			});

			options.IncludeFormattedMessage = true;
			options.IncludeScopes = true;
			options.ParseStateValues = true;
		});
	});

sample.csproj

<Project>
  ...
  
  <ItemGroup>
    <PackageReference Include="Serilog" Version="2.12.0" />

    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.5.0-alpha.2" />
    <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.5.0-alpha.2" />
    <PackageReference Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.0.0-beta.10" />
  </ItemGroup>
  
</Project>