You didn’t get the point. It’s about community relevance.

VPN is both, an interface on your device and a network connection (to a provider). Netguard only uses the first. So every request is going through Netguard but is not sent to a VPN provider, it leaves your device like it would if Netguard wasn’t active.

So no VPN provider can see your traffic.

While being sent through your local Netguard, the request is checked whether it should be blocked or not. This is done by its name. If the name is on a block list (real list or manually blocked) Netguard ensures that the request will end in nowhere otherwise it will go through.

I hope that was sarcasm.

Signal, Threema, SimpleX.

Your source is ridiculous. Please educate yourself about more how Signal works.

No. It’s not. Please take a look at different licenses in this area, whatever ‘libre’ means

Google phone for Graphene is mandatory therefore not my suggestion.

Lineage should not be your alternative as it is not privacy orientated. Take a look at Divest or /e/. There are many supported devices and in terms of privacy much better than Lineage. But in terms of security it is: Divest >> Lineage > /e/

You can check what devices are supported and which suits your needs best