[GAPI][Javascript]Signing-in parameter "login_hint" using gapi behaving differently on Safari and Chrome

Question

I am seeing a small difference in behaviour when using this piece of code on Safari and Chrome.

window.gapi.load('auth2', () => {
      window.gapi.auth2
        .init({
          client_id: getConfig('google').clientId,
          ux_mode: 'popup',
          scope: 'profile email openid',
          login_hint: getLoggedInUserEmail(),
          redirect_uri: `${window.location.origin}/${redirect_url}`,
        })
        .then(() => {
          const GoogleAuth = window.gapi.auth2.getAuthInstance();
            GoogleAuth.signIn().then(() => {
              resolve(GoogleAuth.currentUser.get().getAuthResponse().id_token);
            });
        });
    });

On Chrome : The authorization directly happens, i.e. the google popup opens, and closes after authorization without any user intervention. To be more specific - the url in the popup is (https://accounts.google.com/o/oauth2/auth?login_hint=getLoggedInUserEmail&openid.realm&scope=email+profile+openid&response_type=permission+id_token&redirect_uri=redirect_uri)

On Safari : The choose profile opens in the popup. This leads to user needing to select the account. To be more specific - the url in the popup is (https://accounts.google.com/o/oauth2/auth/oauthchooseaccount?login_hint=getLoggedInUserEmail&openid.realm&scope=email+profile+openid&response_type=permission+id_token&redirect_uri=redirect_uri)

Notice that, on chrome, sign-in flow redirects directly to /oauth2/auth and on safari, it redirects to /oauth2/auth/oauthchooseaccount.

I am already logged in to google in my browser using the email I am sending into login_hint while signing in using gapi.

My questions are -

1. Why is there this discrepancy?
2. Can Safari behave like Chrome?