Does Limiting an iPhone’s Battery Charging to 80% Increase Lifespan?

95% on 323 cycles from September 2023 to September 2024.

I never set a limit but turned on Optimized Charging. Initially, my charging was mainly overnight on a MagSafe stand. The phone would charge fairly rapidly to 80% and then, at about 4 or 5 a.m., charge more slowly to 100%. In recent months, if I didn’t charge during the day, the charge would be below 30% in the evening, so I would put it on a MagSafe charger for 30 minutes to an hour to get through until bedtime.