I just tested two Apps, the stock Clocks app and Google Clock.
I set the alarms in one profile and switched to another, waiting for the alarms to sound.
Using each app in the separate profile, I was able to snooze/dismiss the alarm.
@vvf69107 perhaps you've unintentionally altered the Clock notification settings in the secondary profile which is not able to snooze/dismiss. Have you checked Clock's notification settings within that profile?