[nsuser]

What would help against modern browser fingerprinting technologies?

[chinathrow]

Maybe Tor to some degree?

The design doc is full of references regarding fingerprinting and "fingerprinting anonymity/reduction" itself is mentioned explicitly within the adversaries chapter.

https://www.torproject.org/projects/torbrowser/design/

[vessenes]

I'm not an expert, so there may be a better answer for this, but I choose to act online as if they are not defeatable.

[dandelion_lover]

What about a disposable VM in Qubes OS?

[adiabatty]

Sounds like all the fingerprinters would build up a profile of the one person running Qubes from your IP.