There is no way to prevent that unless you do it using a plugin. Project admins are supposed to administer the project and they should be able to change everything that doesn't impact other projects or the system itself.
In fact, there are feature requests to grant more permissions to project admins and some of that are already available now. For example, editing workflows that are not shared by other projects.
Hi team, I’m Avinoam, a product manager on Confluence Cloud, and today I’m really excited to let the Community know that all customers can now try out the new editing experience and see some of the ...
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