I realized I was at risk by having smart devices on my normal network, so decided to move them to my guest network.
I don’t like my smart tv, but it’s all I have to work with for now. I want to keep it on my guest network, but still stream using jellyfin. I see on my netgear router there is an option to “let devices on guest network see other devices and access local network” which would probably allow it to see my jellyfin server, but then doesn’t that defeat the point of a guest network? Maybe I need to learn what a reverse proxy is…jellyfin server is currently on windows (not my pc) but could move it to my linux pc if needed.
And yes, I plan to get a media center linux box in the future so I don’t have to deal with the garbage smart tv os!
Sure, but that’s not the setup you described in the original post. I think that’s probably where your confusion is coming from - people are responding about a setup that’s just a PiHole, not a PiHole plus router features to ensure that it’s used.
Ultimately any setup that allows the device internet access is going to introduce some opportunities for tracking/telemetry/ads. If the vendor really wants to they could just channel all that data through a single HTTPS connection, along with the useful data you want to let the device access. You won’t have any way to inspect that traffic and selectively block it, so you end up having to chose between blocking everything or blocking nothing.
Your setup sounds like it’s reaching the privacy/functionality trade off that you want.