One of the buttons laps the stopwatch, the other resets the entire session clearing all lap markers and stopping the counter. Better not forget which is which, especially given that you’re probably timing something in the physical world not paying much attention to your phone…
I think worse is the alarm clock, where snooze and stop are the same size and shape, and hard to tell apart when you are half asleep
Dude I struggle with this all the time! The symbols are way too similar to each other and I occasionally find myself turning off the alarm when I meant to snooze.