Is there a way to disable the copy/move button in some folders or for some user groups?
Create a group and restrict path /libs/wcm/core/content/sites/jcr:content/actions/selection/movepage to this particular group. You can add deny ACL from the crx/de Access Control or crx/explorer Access Control Editor.
Check this forum question: Re: How to disable move functionality for pages in Touch UI 6.2
Our use case is that the user should be able to create but not copy the same resource because each resource has an id that needs to be unique. And copying a resource would just create a duplicate.
Move operation requires create(destination)/delete(source) permissions, So, if you remove these permissions for a user, they should not see the move button.