ASP.NET Identity SPA Authentication

[UltraWelfare]

Following this guide: https://learn.microsoft.com/en-us/aspnet/core/security/authentication/identity-api-authorization?view=aspnetcore-8.0

Calling /login with the useCookies=true parameter, gives back a cookie with an expiration date of 14 days... Is this supposed to be refreshable somehow / configured or is it hardcoded to 14 days?

Also, how does it work? Is it a session cookie (I can't seem to find a database record of the session) or is it a token encrypted inside the cookie which is "stateless"?