Google has an integrated password manager that is somewhat hidden in the system settings. To access this without detours, it is possible to create a shortcut icon.
Depending on the manufacturer or Android version, the steps may be slightly different, but for most it should work as follows:
Settings -> Google Services & Settings -> Autofill -> Passwords -> Click on the cogwheel at the top right -> Add shortcut to homescreen
If you now click on the icon on the sart screen, you are immediately in the Google password manager.