I have a controversial setup compared to many here. I don’t track workouts. I do track sleep, steps, heart rate, and some other metrics. Primary use though is a watch with other info (weather, seconds, sunset, humidity) at a glance.
As far as notifications. I only receive them for messages and phone calls, everything else is off. Siri is off, noise levels off, ecg is off (can turn it on when I want to take one). AOD off. Most background services are off aside from ones I need.
I want to test this again but with the modular face and no background or complications. Just a black screen with a white time and date and a seconds complication (as I need that) and see if I can break 40hrs.
Ultimately battery life and longevity is a priority for me and with 98% life left after 7 months I think I’m in a good spot.