FWIW, one of the majors complaints is that many of these devices will actively, without prompting search for and connect to open wifi.
https://www.reddit.com/r/privacy/comments/bpr6xs/if_you_choo...
Anecdotally I have 6 Samsung TVs hung on my office wall for monitoring, which run the Tizen OS and the nag screens about connecting to a network and accepting the ToS make the units a little annoying to work with. (But it’s not as bad as to say I wouldn’t use the thing). It wouldn’t surprise me if they were scanning for open Wi-Fi. I might test it out, but we’re surrounded by free Wi-Fi which has captive portals, so it’s effectively black holed.