Natan D.

Isn't there also a Mixpanel user property called Total App Sessions, which you could use?

Yes. You can copy the URL to a report/visual/text in the dashboard by clicking on the dots beside it. You could use these links as quick links by adding them in a text field on the dashboard

You can copy a URL to a report in the dashboard (or another dashboard) and add the link in a text field.

kapa.ai when a user closes their browser, does this also mean the sessions ends?

Not sure, maybe try to add end session event? (so pageview or end session). Not sure if that would work

I would create a funnel with pageview > pageview and look at the average time to complete. This will give you good results as long as it is not the exit-page, I believe. Or calculate the average session time and divide it by the average number of pageviews per session