For many users, they view confluence nearly exclusively through the desktop app, or do not care that the viewing experience in the mobile app is changed due to the change in aspect ratio. For these users, they would prefer that new pages default to the full-width rather than the fixed width format.

For this, I would like to propose either a global or space setting that will default the new blank pages to using the full width rather than the current default fixed width. This would allow the users to choose a default that is sensible for them.