I have a test Site Collection. I've added a document library to the root site and added content types to it. When I save this Document Library as a template under Library Settings, this "App" becomes available to a subsite I created.
Will this work in a real environment? If Permissions on the root site and a subsite are different, would this App still be available?
Thanks!
To answer your final question - the app (Document Library template) would still be available on the subsite. Whether or not users can use the template you have created would be determined by their user permissions.
I believe the individual permission is 'manage lists', see this link for more info. For further reading this link is also of use. PLease note that there are multiple OOTB groups that have the 'manage lists' permission. (A group is assigned a collection of permissions, which behave cumulatively).
