With iOS 15, my Apple Watch doesn’t vibrate anymore

My question says it all. Before iOS15, I had an alarm set with Sleep Mode, that would make my watch vibrate when I had it on my wrist at sleeping.

Since upgrade to iOS 15, my Watch doesn’t vibrate anymore. The alarm works, I see it appear at 6AM on my Watch but…

no sound, no vibration.

I went through new settings on iOS 15 to try to force vibration mode, I haven’t seen much.

Anyone else experienced this since upgrade to iOS 15?