iPhone 7 Frozen Can't turn off or Reset

My iPhone 7 just frozen right after the Passcode was entered. So basically it's frozen on the home screen right before the apps animates / slides in on the home screen.

I've tried holding the sleep / wake button + home button down with no luck. Nothing happens. I'm able to slide down the notification center and type and search in the box but then I try to open an app nothing happens.

If I press and hold to activate Siri, she appears for a second then turns off as if I pressed the home button again.

I've tried connecting the iPhone to a Mac but as it's Passcode enabled it tells me to unlock it and then replug it which I'm not able to do.

Any idea on how I can move forward? I could wait for the battery to drain but since it's at 91% it will take a while and I was hoping for a quicker fix.

To force shutdown the iPhone 7 you need to hold volume down button and the sleep/wake button.