No. You need to request your Netflix video, you need to ACK the segments of it you receive and a lot more.
At the very least you’ll need to maintain a detailed whitelist of allowed domains and especially for the manufacturer some packets might he OK, like checking for updates, while others you’ll wanna block.
It’s likely a lot easier to just get a dumb screen and have the smart in a device you control.
Why would you not want containers managed by systemd?
You get the benefits of containerisation and you don’t have to learn the arcane syntax of some container engine or another.