Application Insights Availability Tests are synthetics tests, don't run JS and don't generate PageView telemetry. They generate Availability telemetry which can be alerted/viewed on Availability UX, etc.
Re: Selenium. You're testing web app onboarded on Application Insights JS SDK; On regular visit you see PageViews, but you don't see ones from Selenium tests, correct? Currently JS SDK relies on a few APIs such access to DOM which might not be available in Selenium driver.
Re: report on traffic - for Availability tests you can check Availability telemetry item. For Selenium - if after each execution you can call trackAvailability yourself then this will cover report on traffic for Selenium part as well.