I have been made aware of deployments in Github https://docs.github.com/en/actions/deployment/targeting-diff... which offers similar functionality, without external monitoring or Rollback. The advantage of Azure devops is integration with Azure identity, making setup of approvals, reviewers easier.

pippy makes it easy to setup pipeline from simple workflows using UI (which Azure devops is good at), while in Github you may need to create a parent workflow which comprises of these individual simple workflows.