Using a user specific column in one sheet and a join list column in another, you can create logic to hide a tab even in a Public app!
Maybe an action needs to be added for public or sign-in later apps to be able to set a cookie. This would be very helpful for me as well. A โsave this sessionโ button or checkbox could give the authorization to set the cookie. The USC would need to be saved through an ID of the session somehow. Iโve been trying to work this out for one of my apps.
Itโs not out of reach to say this will be one to look out for in the future. We may have something like a โSession IDโ.
Youโre just validating my procrastination with all my half-finished apps, while I wait for the features I want!