It's only a matter of one day, but I seem to be the only one who's not reporting Nov. 1 as the trigger date. It was the morning of Oct. 31 that I first noticed this issue. On my phone, I have a few different alarms that I use in my life: Workdays (repeat Mon-Fri), Days Off (repeat Every day), and Naps (no repeat). I noticed that it hasn't been an issue through the week, only on my days off. So yeah, definitely, the problem only pops up when I use the alarm that's set to repeat every day of the week. People are saying that they're continuing to wake up an hour early, and/or having to set their alarm an hour early all the time now? Simple work-around for the time being seems to be to just change your alarm repeat settings and/or use a few different alarms to compensate! Then life can quite easily be normal again 🙂
I'm not so sure it's DST-related, as it started on Oct. 31 for me, but time will tell. We'll see if this problem remains consistent after this weekend, once DST ends.