For Modern Standby, the transition from the active to the low power state is a series of steps to lower power consumption. Components are powered down when they are not in use. So, the transition into and out of a lower power state is much quicker on a Modern Standby system than on an S3 system. If the system supports Modern Standby, it will say so right at the top of the output. And also whether that Modern Standby is connected or not.