No one said you are not allowed to use Netguard or that you can't use it for other purposes, for example, monitoring your traffic.
The documentation doesn't say you can't use Netguard or firewalls, but that they're not recommended. Here it explains the reasons. I'm simply asking for a better explanation. However, since I haven't really gotten a definitive answer about it, I'll just use my VPN instead.
You need to do more research on this, there are tons of articles online about fingeprinting.
I have done plenty of research on fingerprinting. I may not know everything, but browser privacy is probably my area of expertise in terms of privacy. Firefox, hardened with Arkenfox, is recommended as being more private than Chromium. I never said Chromium-based browsers had a bad reputation (although, they do). I never asked for complete privacy or complete anonymity. That wasn't part of my question. My question was why Vanadium was recommended over Tor, and why the documentation says that Tor has weak security therefore weak privacy, which is completely false as you and other articles have demonstrated. The only explanation that I've received for why Vanadium is more secure over Tor (and other browsers) is that it uses isolation. I have yet to read this article, which may shed some light on site isolation.
You don't use containers in Firefox for security, you use them for convenience, if you want to login to 2 different websites without having to opening and closing Firefox, you use containers. Its up to you to use them or not, they don't provide any extra security.
While I think they do provide some privacy (or at least they used to), you can also achieve the same thing by using separate profiles (which is what I do), which is more private. But yes, if you wanted a simple solution, containers would work.
Again, privacy and security are two completely, completely different things. Tor is private but not as secure, Vanadium is not private but more secure.
I understand that they are different, as I explained in my original post. However, you can't separate the two, they are intertwined like two sides of the same coin. If we're going to debate about the differences between security and privacy, then we may as well get our definitions straight. There are numerous good articles that explain the differences, and anyone remotely knowledgeable about InfoSec knows that privacy and security go hand-in-hand.
It seems to me that, in the privacy community, you have two types of people. Those who don't understand the differences between security, privacy and anonymity, and those that think they're all completely different and have no overlap with each other. Not only do they overlap, they enable each other.