Questions about Cookie and Session Status in ASP. NET

When a browser that does not disable cookies requests a web site, the current page uses the Session status. A cookie with a unique identifier will be returned to the browser as the page returns, the Session status can be used to continue tracking users during page switching. When the browser is closed, the Session status will be requested for the same page of the site. why can't the original Session status be obtained? What is the root cause? Is it because the cookie returned with the page is a session cookie every time you open your browser and return to the site?

The reply content is as follows: The cookie that records the SessionID is stored in the browser process. If the browser closes the SeesionID, it will be lost. Another browser cannot send the previous SessionID to the server.