At least the Smartthings Home Monitor should be able to send Critical Alerts that bypass the mute switch and Do Not Disturb settings on a device, ensuring that the user receives important notifications regardless of their device’s sound settings.
Android 14 allows you to select the notifications, messages, calls, and apps that can by-pass the Do Not Disturb settings. Those selections are made within the Do Not Disturb app. I included the ST app and it works for me. My phone is an S23+.