What's the extra Quick Menu Tab?

[Android Central Question]

Recently I noticed an "extra" Quick Menu Tab along the Edge of my Note 8. Currently am using the Edge screen which I positioned on the lower portion of the phone, but this second Edge Menu is on top the the first menu screen. The second Menu "tab" appears when you wake up the phone, however when you swipe it or touch it, it just disappears. Don't know how I got it or what it is supposed to do. Anyone know?