Github release deployment ( Amplify )

Hello, I'm using GitHub source control to manage all source code. I have set up 3 branches in our AWS amplify ( within APP ). 3 connected branches list : develop, staging, main

I need to generate a release in GitHub from the staging branch and then deploy that release in the main branch using amplify It's possible to deploy the GitHub release via AWS Amplify? Or do I need to generate PR from staging to main then I need to merge code in main and then amplify will deploy code?