Thanks for the review. I made the extension, because I needed this functionality and wanted to have it wrapped up in a convenient package. The user-agent is for the Xbox Series X. Specifically:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox Series X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/20.02