Refer: https://9to5google.com/2022/06/23/stream-fullscreen-ultrawide-content-how-to/
Chrome Extension: https://chrome.google.com/webstore/detail/ultrawide-video/lngfncacljheahfpahadgipefkbagpdl
Firefox Extension: https://addons.mozilla.org/en-US/firefox/addon/ultrawideo/