That message is incorrect and there is no update I know of for these TVs. The name smart is in name only and the browsers continue to be worse than what you could do on a 20 year old PC.
If you expected better, tell the maker.
We recently bought a LG Oled TV: OLED55B6P
We tried to access Google Photos using the web browser. We got access but after a few minutes we were kicked out and a message advised that we had to "Update the Browser" and links to the major browsers appeared. When we selected any of the browsers and attempted to upload a browser update we were informed by another message the this tv "Does not support downloads".
How do we update the browser so that we can access Google Photos? Is there any other way to access Google Photos? Our computer is an iMac and we have iPads and iPhones.
Any help would be greatly appreciated.