

https://www.fool.com/investing/2024/01/16/people-think-roku-makes-money-selling-streaming-st/
https://www.mensjournal.com/entertainment/tech-smart-tv-screenshots-acr-tracking-privacy-lg-samsung
https://jamestown.org/connected-smart-tv-security-risks/
https://taurusx.com/resource/480275.html
For a peer-reviewed (means scientific) article here is https://journals.sagepub.com/doi/10.1177/13548565251327885
I guess Sony does not, but they allow Amazon and/or Google onto the TV and if you think they are not getting money from you that way I have some nice ocean side property to sell you here in Saskatchewan.
I have my own domains, but I do not use them for Jellyfin. I use Jellyfin on my lan or over my personal VPN.