It's a logo of Queue reduced to the top half of three people standing behind each other. It looks like three people waiting in line. Which is similar to what a queue is.
This is the Queue icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.