Varies from organization to organization. The current place I work has a policy that they own stuff which I create on my business machine and I am free to purs

Varies from organization to organization. The current place I work has a policy that they own stuff which I create on my business machine and I am free to pursue interests which do not cause a potential conflict of interest or competition. In my previous organization, it was a simple "we own your ass, home or otherwise and don't you dare engage in a side project without informing us" .