Parsec is a great tool for streamers. You can use Parsec to play games with other streamers and grow your audiences, play games that your PC can’t handle, or bypass an Elgato capture card and stream directly from a second PC with Parsec. Beyond these use-cases, streamers and content creators are getting creative and are using Parsec in unique ways to engage with their audiences.
To capture Parsec, if you have Windows 10 1903 or newer, use Window Capture as a source and select the Windows 10 (1903 and up) method in its settings.
If you can't use the Windows 10 method, you'll need to use Display Capture to capture the entire screen in OBS, and crop the screen with the OBS settings to show only Parsec, in case Parsec is in windowed mode. Click the created display source in the preview and press Ctrl+E, then modify the Crop section.