First of all, gorgeous app! I also just want to warn you about using the UNIQUE formula to build a user profile sheet from the app: logins sheet. If any of the data in App: Logins is ever shuffled around or deleted, it’s going to break all of your user profiles because the data in that sheet will be reshuffled and not match up with any other user profile columns you have. I would recommend using Glides built in User Profiles to automatically create a user profile record with email in your user profile sheet.
https://docs.glideapps.com/all/reference/privacy-and-per-user-data/user-profiles