Concur on the rock solid comment. We use Azure Devops with git repos, lots of pipelines using self hosted or Microsoft hosted agents.
There was an issue with Microsoft hosted agents a few months ago, but that didn't last long, and is the only issue in my memory.
Yes. pihole coupled with a router that can intercept outbound traffic on port 53 and force it to the pihole is how my home network is configured. That way it catches all those sneaky devices that have hard coded dns servers.
I do prefer github interface over azure devops.