I think this watch face specifically cause some problem because there is on other topic where someone make bug is watch and he use this watchface to.
Personnaly i use basic watch (the one with time in big and me watch last me one week.
I use it for musculation with HR, walking, cycling with HR and GPS (endurance, ok or precise)
I use it to for me sleep time and the daily HR. I don’t use saving battery.
My luminosity is at 15%
and all thing turn on dark theme.