Interesting that the alarm is such a far down feature for you. I use a galaxy watch 4, and i dont think i can ever go back from a silent alarm. Nicer to wake up to, and doesn't wake up everyone in the house as well
Once you get to a week of battery life like a Garmin or those cheap armbands without screen that becomes a much better feature
I use my watch for time, step counting, and ringing/vibrating. Having my phone on silent and not missing calls (not messages, messenger are not allowed to send notifications to my watch) is such a step up for me :)