Yiikes, on my B550M DS3H, previously when I woke my PC from sleep immediately after it slept (eg. by pressing the keyboard or case power button), it would "wake" after 0.5 seconds asleep and turn on the power light but not respond to user input, and not even shut down if I held the power button for 4 seconds! I had to pull power at the wall. This behavior occurred on both Windows and Linux, and was fixed at some point in a BIOS update.