5 minutes ago, Midevil Chaos said:
So in practice, they will never know I am streaming Linus or my own videos then? I assume that local traffic is safe from other snoopers too? I don't know much about security when it comes to the local network itself unfortunately in terms of streaming and the actual data being seen.
Local traffic does not route through the WAN, so it only goes between your devices through the router. Again, an ISP gateway could conceivably (read: highly unlikely) collect metadata on your local traffic, like how many bytes are transferred to and from each device, but no one outside your network will be able to see the packets (unless there is something seriously wrong with your network security or you have malware on your devices).
Using your own router will completely eliminate any chance of your ISP knowing anything about the activity on your local network.