GoKawiilRoku streaming sticks work on any HDMI port but may miss HDR features
Roku devices, including the top-tier Ultra, don't require HDMI 2.1 ports since they top out at 60Hz refresh rates and work fine over HDMI 2.0. However, some TVs restrict HDR formats like Dolby Vision to specific HDMI ports, or require users to manually enable 'enhanced' settings in TV menus to unlock full capability on a given port.