Watch on 12.70, and I tried the new smart alarm
I've set up a normal alarm with sound and vibration before - works fine
When the smart alarm doesn't trigger the half hour before the set time, it also makes sound and vibrates.
But if it's triggered and the smart alarm goes off within the half hour before, it stays silent and only vibrates once - basically doing nearly nothing with the purpose of a working alarm.
(The same with the repetition 10min later)
Idk if this has something to do with the active sleep focus mode via the set up plan until my 'latest wakeup time', but when testing a normal alarm with a manually activated sleep focus mode during the day, it has the expected behavior with sound+vibration.
Obviously, I can't trigger this issue manually, and so I can only report back on future observations.