It's the logo for Twitch. It has the iconic square bubble box with the two horizontal lines that signify pause buttons on a radio. The pause button is encased in the square box.
This Twitch icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.