Extract (unzip) the contents of the following Orsay Widget file to the root of USB drive (FAT32 format) and insert it to your TV’s USB slot. The SmartIPTV directory should be located in the root of your USB drive. The application will appear on a Samsung Apps screen among other apps.
The S22 Ultra is eligible for Android 14/One UI 6 without having to be rooted. Plus they promised I think it's 4 years of android versions and 5 of security updates at release. Rooting your phone doesn't have anything to do with being able to flash the latest Android version.