What happens? I get a popup every few times I turn on the TV telling me that I can enable Alexa support by connecting it to the internet. It's an ad. For itself.
I connected it to the internet. Now I get other ads in that way instead.
LG is no savior in the anti-ad race.
FWIW - on most LG TVs, you can 'revoke' your acceptance of the EULA, which essentially returns the TV to non-smart status. Most of the tiles will disappear from the home screen, as will the ads. Depending on the model you might need to futz with the settings to make sure that the TV defaults to the hdmi input instead of the homescreen when you turn it on.
And when a guest accepted EULA it promptly filled my home screen with "recommendations" of documentaries about Porn, with explicit posters included.
I then threatened to sue them. The porn recommendations stopped and they sent me an apology, but the other ads remained.
With the development time and money saved they could afford to implement a few thoughtful touches like a physical master on/off switch. If that switch is on, then the TV is on whenever power is present. This allows it to be controlled with a simple home automation power plug. A soft on/off control can still exist downstream of the physical switch.
If you're willing to settle for less than the best, there might be options. I didn't really look into them, though.
https://www.lg.com/us/business/digital-signage/lg-65ep5g
https://www.samsung.com/us/business/displays/4k-uhd/qe-serie...
The Roku TVs I put in my family’s vacation home are terrible. They oversaturate the image to account for the shitty display. Don’t use it a lot so I don’t care.