I updated the crAPP earlier this morning (Android). No meaningful release notes in the Play Store.
Turns out it did restore the alarms section but also required an update of my whole system (goodness knows why).
After restarting the crAPP once or twice I eventually had my alarm functionality back. I could not see any other changes.
This is positive, although I have lost all and total faith in the SONOS developers and management and fully expect this new update to have broken something else.
I don’t know if the iOS crAPP has been updated the same?