Test on any device of your choice: To test this issue you need to have one site with at least one idetity provider (ie. Google oAuth). Enter a site with one identity provider. Logout and enter again. On the reconect screen check the google button is show on top of login methods. Click on More ways to login and check other login methods are shown there. Login with the same identity provider in step 2. On the website set a password to your user. In the app, check you can logout and login again using "More ways to login" and using the password. Test the other way round. first login with password and then with Google oAuth.