Hmm...we can't find this setting yet, but we'll keep checking. Feel free to contact us for help.
Looks like you're signed in with a Gmail account. Please try again with your account that you use to access Google Admin.
Setting the policy to a number has Google Chrome show a message for that number of milliseconds, then it opens an alternative browser.
Leaving the policy unset or set to 0 means navigating to a designated URL immediately opens it in an alternative browser.