I’m also trying to figure out why my off/standby power is so high (26W vs. 0.5W)… There are few possible hints in the manual.
*2 The Google Assistantor voice search with the built-in MIC is available only on limited region/country/language. Standby power consumption will increase because the built-in MIC is always listening when the Google Assistant or voice search with the built-in MIC is enabled.
*5 Specified standby power is reached after the TV finishes necessary internal processes.
*6 Standby power consumption will increase when your TV is connected to the network.