That's generally for distribution, but yeah, it's a form of domain fronting.
There are some more niche techniques that are _really_ cool but haven't gained widespread adoption, too, like refractive routing. The logistics of getting that working are particularly challenging since you need a willing partner who'll undermine some of their trustworthiness with some actors to support (what is, normally, to them) your project.
If I understand correctly, refractive routing basically just gets big trustworthy cloud providers to host the VPNs so that third world governments can't block them without blocking the cloud too. It's an unfortunate solution since tech platforms are international entities that should be neutral. When America asks them to take sides and prevent other countries from implementing their desired policies, America is spending the political capital and trust that tech companies worked hard to earn. It's also really foolish of those countries to just block things outright. They could probably achieve their policy goals simply by slowing down access to VPN endpoints.