Unless you phone runs out of power before your day does, I see no advantage to fast charging. There is always a payback for anything good and in this case, I think the battery will deteriorate quicker if fast charged all the time.
My iPhone 8+ was still at 100% after over a year as is my MAX since introduction. Both were slow charged via wireless. Phone never even gets warm while charging which makes for a happy battery!
Pretty much this. I just charge overnight, imagine that.
I use wireless charging, and am actually a bit disappointed it is 7.5W instead of 5W. When the Belkin/Mophie wireless chargers originally came out in 2017 they were limited to 5W but then I think Apple "unlocked" 7.5W or something so now that's what they use.
The slower the charge, the less the heat, the better the battery life long term. Still at 100% capacity on my 6 month old Xs, actual mAH north of design mAH confirmed by Coconut Battery just today.
No way would I be fast charging a phone anymore than absolutely necessary, and definitely not overnight. I could see doing it in an emergency situation, but even then, how often is it really an emergency? I'd probably temper my phone use throughout the day (or keep it hooked to a powerbank or on a charger if I was sitting at work at my desk or something) if I was a power user and knew I might need extra juice later that evening, so at least for me I can't even really fathom a case where I would ever need a fast charge even during the day.