If you want to do live streams or capture the screen of your DAW, including the DAW’s audio output (e.g. for youtube tutroials etc), you need to enable loopback on your Steinberg Interfaces (like the UR22 MK 2 ). No extra Plugins are required!
With loopback enabled, the output signal of your DAW is internally routed to your Mic/Line inputs (channels 1 + 2), allowing you to record the audio output stream of your DAW at the same time as it is played back.
Or in short words: Loopback turns your Steinberg interface into a full duplex device.