There is no OOTB integration between SPO and Azure DevOps. At least, you will not see the same type of integration that Confluence and Jira has to offer.
In a way, Azure DevOps has both features of Jira and Source control baked in. However, it lacks the “Confluence” part. However, Microsoft has MS Teams, which brings all of these tools together. For example, there is the Azure DevOps connector. It allows you to see the ADO boards.
More details here: Microsoft Teams with Azure DevOps Services (Collaborate, Communicate and Celebrate)