What network Internet connection gives the provider the opportunity to spy on the subscriber?

Question

VPN

The provider provides the ppoe service based on a simple twisted-pair network connection fttb without a registered IP address, only on the poppy address.
They say that you can hide visited sites and passwords from the provider through paid VPNs that encrypt everything even from the provider (this is speaking specifically about hiding ppoe data).
And on a simple network connection, what can the provider do? Can it get full access over the computer through it, despite all the paid vpns that operate on ppoe. And the network connection itself with a poppy address is separate and open to the provider? No one speaks for this connection anywhere? Or will the provider do nothing with it for complete surveillance?

Answer 1

Providers do not follow anyone. It's not their job. They don't care about your traffic. They can't do anything.

Answer 2

you can hide visited sites and passwords from the provider through paid VPNs that encrypt everything even from the provider (

Can. This thing is called a VPN. The truth of the fact that a VPN is used cannot be hidden from the provider. And if you have something to hide - wait for the guests...
See where you go and calculate how much you download.
If the connection is not encrypted - see what is downloading
In fact, such things are punishable by law. Provider doesn't need it at all :)