The easiest way to do it is to right-click the app's icon on the Dock, then click the "Quit" button. The Santa hat should be ...

You can also use tools such as https://verify.contentauthenticity.org/ to check whether the video contains C2PA metadata.

Go to the Home menu and make sure the highlight is over the Home option on the left. If resetting the Roku TV doesn't solve the issues with slowing, you may have to uninstall and reinstall the app you ...