I’ve been driving mine for months now and never knew the brake thing. Gonna test it out tomorrow. But in all honesty, I’m just like most on here, it’s simple & quick to just push one button each time you drive.I switch it off but the other option when you stop is just don't press your foot as hard on the brakes. Then it won't operate.
If you want it to operate at the lights then just press all the way down.
Only time it is a problem for me is if at an intersection waiting to pull out into traffic.
I definitely don't want it to operate then.