Hey there!
Yes, I do have the Synchronize Workspaces addon enabled, but I did not mention it so you didn't miss anything!
Like Omar mentioned, it's mostly for convenience rather than functionality so it totally slipped my mind to mention. I've added the link below to the extensions page for anyone interested! I can recommend it highly, as it synchronizes your 3D viewport camera and visibility of objects in the viewport across your workspaces.
https://extensions.blender.org/add-ons/synchronize-workspaces/