I run it continuously through the full lifting routine. I normally end my workouts with some cardio (Elliptical, bike, treadmill, rower) for those, I’ll switch workouts to the explicit exercise.
I will pause for a bathroom break or extended conversation though.
I had an S6 for 3 years, and recently upgraded to an SE2. I’m happy, I don’t miss anything and couldn’t justify the difference in cost to get an S9.