I put my Apple Watch on Do Not Disturb, but notification sounds are not switching to my iPhone. Also, I do not have Focus mode synchronization enabled between my devices. is this problem?
Apple Watch Series 8
Yes, this is expected behavior. Because Focus synchronization is turned off, turning on Do Not Disturb on your Apple Watch only silences the watch. It will not tell your iPhone to turn on Do Not Disturb or shift notification audio destinations.
Yes, this is expected behavior. Because Focus synchronization is turned off, turning on Do Not Disturb on your Apple Watch only silences the watch. It will not tell your iPhone to turn on Do Not Disturb or shift notification audio destinations.
Also have a look at the related article about where and when notifications show up on both of your devices:
Notifications on your Apple Watch - Apple Support
Notification Sounds Not Switching to iPhone When Apple Watch Is on Do Not Disturb
