This simple question not answered in two of Proton’s articles on subject.
To access .onion sites in people mostly use Onion Browser because configuring up regular browser to resolve .onion address is a hassle. And Onion Browser has specific security settings that are better for accessing .onion sites.
There are ProtonVPN Tor servers you can connect to. Those provide their own Tor routing. If you connect to Proton Tor server and use Onion Browser it’s very slow, and in about third cases can’t establish any connection at all. I suppose it’s because it wraps Onion Browser’s Tor within VPN servers Tor.
Do I understand it correctly that if you use Onion Browser you should connect to regular VPN server?
“Its pretty simple, our TOR over VPN would go trough VPN server first and then 3 random TOR nodes. Using TOR browser on top of that, you would go trough 6 random tor nodes, that would leave you like ultimately anonymous but the speeds would decrease drastically.”