What I don’t get is why people don’t regard Onion Routers as a form of VPN. It’s still uses a virtual private network, just more of them. a network of networks.
Surely TOR is a type of VPN?
Maybe there’s some details I’m missing. I’m no expert
Really mostly convention. Yes you could label it that way, but people consider it to be enough of it's own thing to not do so. (+ there is some value in not conflating the two because they do have different threat models etc and users should treat them differently too)