It's been donkey years since I've been involved in Windows networks, but back in XP / Server 2003 times not everything was exposed as a Group Policy option, how

It's been donkey years since I've been involved in Windows networks, but back in XP / Server 2003 times not everything was exposed as a Group Policy option, however it was trivial to deploy a package to write to the registry to do the work not exposed as a group policy option, and even easier to reboot client machines, I always thought as Group Policy as high level orchestration, kind of like Kubernetes driving a state towards a spec. tl;dr - unless things have changed it's still easy to disable stuff across a deployment of desktop in an AD even if it isn't a point and click toggle in group policy edtior