They have similar access to “Basic” users and here is the list of things they can do with respect to Azure DevOps
- Add,Create and Delete workitems
- Add,Edit,Delete files and do commits to repositories
- Can Create and Merge Pull requests
- Create and execute TestCases
- Create,Edit and Delete TestPlans
- Create,Edit and Delete Test Suites
- Setup build agents
- Create, Edit and Delete Builds
- Create,Edit and delete Releases
A user with a Visual Studio Enterprise subscription is the top most in the heirarchy in the list of users
