Ahh... modern day electronics wizardry. My car doesn't have that function. All leg muscles at work
These days, the more advanced makes have traffic foot brake hold function.
Some need to press a button to activate...
The more intuitive one I am quite impressed with is Mercedes implementation. When your car comes to a stop at a red light or jam, you just have to press in harder on the brake pedal to activate the brake hold. When time to move, just step on the accelerator and off you go. Works wonder with hill start roll back prevention too.