

Yeah, by virtue of not owning the entire connection (which is impossible unless you own the ISP, intermediary providers, and the service you’re connecting to) somebody somewhere is going to see something that may be identifiable to you. There are services that are offered by many companies for huge enterprises that give you basically a direct connection to a data center and a lot of times that traffic can be totally encrypted, but it’s usually for very big enterprises and isn’t cheap to get.
And you’re definitely helping the privacy part running a VPN on the router level, but still, there’s always a chance of something getting leaked. It’s pretty low and gets better all the time, but that chance always exists. It’s the reason why air gapping is still a thing for things that ABSOLUTELY cannot be attacked/compromised/viewed by some random person.
Again, if you’re going off of a privacy stance, you’ve made things hard enough that unless a huge ISP has some kind of agreement to sell data to advertising companies and spending the time to implement services to get you and the 2 percent (which is probably a huge overestimate) of customers taking similar steps, it’s just not worth them making the effort.




You cannot just buy any SFP module and have it work. Most ISPs deploy a “special” (at least compared to normal point to point fiber links) that lets them serve multiple customers out of one port in their office. This is called a Passive Optical Network and requires specialized modules on both ends. There are ways to make a specific SFP work as an ONT and by cloning certain identifiers from the ONT to make the ISP think their box is still there.
This is a lot of effort and from my research, could stop working randomly in some cases.