To add a shortcut on your phone to MyLearning, you can do so by accessing the link below on your phone via the Edge browser, signing in, and once you've reached the MyLearning home page, Press the 3 lines or dots in the bottom right of your screen and go to 'Add to Phone'
https://cbhomes.learningpool.com/
From there name the Shortcut MyLearning and hit add.
You'll then have a direct link to MyLearning on your phones home screen, it will still ask you to sign in with your MyLearning credentials when you access the shortcut but you wont need to sign into Office 365/SharePoint first.