Updated 09042022-200042
I still maintain that the most important functions Apple ever gave Siri was/is "Hey Siri... Disable all alarms." I made this Siri Shortcut a long time ago, but I thought I'd share it with you guys. Be warned - it will actually disable any/all alarms on your phone instantly, so... https://www.icloud.com/shortcuts/4472e74c98424ce983870b691faab9eb
This shortcut uses the Get All Alarms action paired with a Toggle Alarm action to disable all alarms. I've also included an audio notification paired with a system notification, which you should feel free to remove, if preferred.