It is possible to add multiple authors to one git commit on Github.

You just need to add “Co-authored-by” to the end of the commit message followed by the co-authors’ name and email address. This works for multiple co-authors.

git commit -m "Your commit message" -m "Co-authored-by: Name <email>"

This will then show up in the commit history on Github. I don’t think it works on Azure DevOps.