I cannot find 1Password icon in Chrome browser on my Android 9 phone

@mbujar Thanks for getting back to me. If you're using 1Password on a computer as well as your Android device, it's easy to use the browser extension to save your Logins there. The browser extension doesn't work on Android so you won't be able to install it in Chrome and use it there. If you're just using Android, you'll only be prompted to save Logins using Autofill. In Chrome in particular, this requires the latest version of 1Password.

Can you let me know what version you have installed on Android?