i've had this 14 pro (max) for a few months. it has always had great battery runtime, no issues. only problem to date has been when i was out-of-range. and yes, ALL other apps were turned off (nothing running in background).

my guess is that it could have been the GPS, so will use airplane mode next summer when i head back north. if that doesn't do it, i'll check under the BATTERY LEVEL chart to see what did draw it down. thanks everyone!