In Azure DevOps we have our source code in various repositories. I to be able to look across a repository and determine who all has items checked out.
I've researched the internet and found nothing. I've tried install various add-ins into Visual Studio and nothing seems to help.
If you about TFVC, you can use TF.EXE with status command. Examples:
tf vc status $/<TeamProjectName> /collection:https://<org_name>.visualstudio.com /recursive'
tf vc status $/<TeamProjectName> /collection:http://<servername>:8080/<collectionname> /recursive'
However, there are some problems with workspaces. If your developers use local workspaces, you will not find any checkouts.