2. Adding More Telemetry to Application Insights & Dashboards

Hi all;

I have a Blazor Interactive Server app using ASP.NET version 8. And using Entity Frameworks for accessing the DB and the ASP.NET Identity Library for users & claims.

I have Application Insights connected to the app via the AI SDK. I have the following configuration & extension questions to make better use of Application Insights & Dashboards. (Editorial comment - all of monitoring, metrics, application insights, etc. is really well designed and provides pretty much everything one could ask for.)

If anything I am asking to accomplish below is a bad idea, please just let me know it's a bad idea and then no need to answer the specifics for that question.

1. How can I turn Application Insights on/off using an environment variable? I want it off on my desktop and sometimes off for the dev slot on Azure.
2. Just as builder.Logging.AddApplicationInsights() sends all my Ilogger calls to Application Insights, is there a way to send my Health Checks (which I have working) to Application Insights/Dashboards?
3. Its not clear in all the documentation about what is classic Application Insights, what is Open Telemetry, and if they work together. Based on these steps for incorporating Application Insights I am using the classic Application Insights – correct?
4. Can I use Open Telemetry also? Or should I stick with just Application Insights.
5. When an exception occurs, do I want to call TelemetryClient.TrackException(exception);? If not, what do I call?
6. What do I add to my Blazor app so it will tell Application Insights every page loaded and how long each took? Blazor is a SPA.
7. What do I add to my Blazor app so it will tell when each session starts/ends? Blazor server uses SignalR so the session is the start/end of the circuit.
8. What do I add to my Blazor app so it tracks what user is doing what? My app uses the ASP.NET Identity Library for users (and claims).
9. When the user calls search in my app I want to save the time, call my Search method, then log the elapsed time to Application Insights. How do I do this?

thanks - dave