I could find this KB that states how to do this change for all users who didn't have set it on their preferences.
You must go to
ConfluenceInstallationDirectory >> confluence >> WEB-INF >> lib and edit the confluence.x.x.x.jar opening the preferences-default.xml file and editing it.
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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