Is idx session cookie persistent defined by Global Session Policy?

After logging into okta using Okta hosted login page, Okta added idx session id to browser cookie. Thus, user session becomes persistent even after closing browser. Is this persistent defined by Global Session Policy rule? Seems like this cookie has been set even Persist session cookies across browser sessions is disabled.

Hello,

In an Incognito browser session, if you login and view the network tab, when the idx cookie is set does it include an expiration date?

Thank you,