Auto rest timer for strength workouts?

I came across this video showing how to set up a rest timer: https://youtu.be/R98pZIRfkPI?is=6s6d2YrQs3IWJysX

I tried that approach, and it is useful, but I don’t like that I still have to press buttons during the workout. My goal is not to track every machine or exact exercise or tell the watch my workout routine. I just want the watch to notice when I stop a set, start a rest timer automatically, and resume when I start moving again.

A friend has a Garmin vívoactive 4, and it seemed to do this automatically during strength workouts. He stopped, the rest timer started. He resumed, it picked back up.

Is there an Apple Watch app or setting that works like that, or is Garmin just better for this specific use case?