I agree with entropy - doesn’t matter if you chain multiple VPNs, use bridges etc - a global adversary is gonna marry up the traffic flow at least some of the time and the ID of the user is going to be trivial for them under those circumstances.
The Tor Project is quite clear on this issue. If you want a low latency browser, don’t expect absolute anonymity from the spooks. Expect partial anonymity, some of the time. But you will defeat most other chumps out there in probability i.e. surveillance capitalists like Google and co (although Google does own a ton of internet infrastructure that could aid deanonymization).
There doesn’t appear to be any strong, reliable, low-latency, anonymity method available for sitting duck targets i.e. those conducting activities from a non-mobile location. Thus, save your hero (revolutionary, illegal…) antics for the off-line space only.
If you need absolute anonymity, it would probably require Tails from random public networks far, far away from your home location + physical opsec measures. Or for private comms - email encryption + offline OTPs, since they’re not gonna raid your house for the OTP unless you’re Pablo Escobar or some jihadi wannabe.
You know, all of this reinforces that the “Masters of the Universe” own the net and computing solutions are hopeless in the main against state-level adversaries.
However, their major blind-spot is that they are so far up everybody’s electronic ass, and invest so heavily in this area, that proper physical opsec arrangements in meatspace have very, very good chances of never being detected.
When you see a 100 foot wall, do you climb it, or do you circumvent it? Take anything you really care about off-line, use cash, limit electronic communications, don’t buy shit on-line, don’t overshare online, don’t use surveillance capitalist products (that’s 99% of large companies), don’t goad the electronic stalkers, and don’t do anything that could rob you of your liberty on-line. Call it an electronic harm minimization method.
I think that is the only solution, since it is clear that they will NEVER rollback their surveillance systems. Just pray for a huge solar flare instead to bake everybody’s electronics to shit and we can all return to truly private arrangements, while also living a 19th century lifestyle…