Hi @Rustymoo,
Several changes have been provided in the One UI 4.
For example, in the Gallery app more options have been added for sorting albums that contain many photos, you can now edit date, time, and location of videos taken. If you're using Bixby, more conditions are available for your Routines. Also, now you can set the Always On Display turn on whenever you receive a notification. Various improvements have been made to Camera app and to Samsung Keyboard, among many others 😊.
I hope you're enjoying the update!😊
