Personally, I don't want Apple to be my Doctor, simply provide the tools to work with my Cardiologist, he is the one that should suggest I turn this feature on/off. I just found this book, which validates my path since I was 1st diagnosed with AFIB in 2011 and others may find it useful. I refused to accept that there is nothing I could do to change my AFIB condition and was on the bleeding edge of techniques to improve my health as I age. Just like I have been on the bleeding edge of Apple Technology my entire career. What is interesting is I consider myself an amateur athlete and I wasn't going to give up my fitness regardless of my age or society's definition. The biggest factors in this book for me are sleep and hydration, along with a magnesium supplement, which I initially tried, but didn't like taking horse pills and stopped. This books suggested a chewable dose taken over the day, duh! Just published in in 2020, and unlike Apple that wants to put you in a box, this book has detailed medical cases, which reenforces everyone is unique, and what works for one individual is not going to work for someone else. I am living proof that you just don't have to live with AFIB, you can recover, and it's not an elderly condition, young athletes suffer from AFIB as well.
https://www.barnesandnoble.com/w/restart-your-heart-aseem-desai/1135744212