turn off notification when s10 restarts

[PetLvrof2]

just purchased my phone 1 month ago and despite my efforts cannot mute the notification when phone restarts. It plays my default notification ringtone.
I tried the Samsung Community but nothing there worked.
When I searched System UI, I was supposed to click Notification (which is greyed out) and do something with fbe_channel which is not an option.
This is driving me crazy as a starting up sound is not always appropriate
Thanks

 

[Dannydet]

Go to sounds and notifications in settings, choose no power on sound.

 

[PetLvrof2]

Go to sounds and notifications in settings, choose no power on sound. View attachment 150315

Thanks for your reply but do not seem to have that option