Whonix Compared to HydraVeil. Very different projects with fairly different goals, use-cases, tech stacks, problems, and philosophies. Whonix: Tries to make everyone the same. HydraVeil: Tries to make every profile different. Whonix: Biggest threat is state-level targeted attacks, with breakout of Tor browser HydraVeil: Biggest threat is the centralization of the internet, and a few huge giants overseeing your entire life. Where 99% of people can't avoid their invasive fingerprinting, without this tool. This article goes over not only the differences in the projects, but also differing philosophies on Tor itself:

Whonix Compared to HydraVeil | Simplified Privacy