I have just updated my S24 Ultra and it has installed UI 7.0 and the software update.

Before the update , the time and date  was displayed on the standard home screen, in the style shown below  (this is not from my phone but an example I found online)

Since the update,   I do not have the  date shown to the right of the time in the top left corner of the home screen?       1.  how can I get that back?

2.  More generally, how can I control which apps can add a notification alongside the time at the very top of the home screen?

Thanks