The "smart" TV in my office is hooked up to a chromecast thing and I interact with the chromecast dongle. My TV has never been hooked up to the TV and in fact I haven't even accepted the EULA. The GUI on the TV is lightning fast, and since it can't update itself (and never will!) it will remain lightning fast. If my 4k HDMI dongle begins to struggle, I will plug in a new device via HDMI.
I was not able to win that argument with my wife on the living room TV but our LG (C series) I was able to disable the ads and with a recent update I can now turn off all but the ~4 apps we use (youtube + disney+, + netflix and one or two rotating services). Fingers crossed LG does not push the "brick your TV" update before it's usefule EOL. The HBO app on our ~2016 era samsung was totally useless by 2018. I am hoping we get more than 2 years out of our current TV before the GUI starts creaking under it's own weight. The Samsung also started showing ads in the app menu selection about 3 years after we started buying it (from korean car makers, really good way to ensure I never buy your brands!).
"I am hoping we get more than 2 years out of our current TV before the GUI starts creaking under it's own weight."
Ha! The Sharp color TV here in the kitchen is now nearly 48 years old (bought in 1978) and still functions well but with the addition of a set top box/PVR although its remote control has been repaired many times (but the TV itself has never needed maintenance).
Other flat screen TVs have no internet access or are used monitor style with separate STBs/PVRs. As I mentioned on HN some weeks ago, if the trend continues and manufacturers booby-trap sets into planned obsolescence, I'll buy only monitors and connect them via HDMI to a TV feed.
My ancient Sharp TV shouts at me that these days there's something terribly wrong with domestic electronic appliances.