The New Internet

If not, why Tailscale specifically, and not Netbird, Nebula, Netmaker or some other competitor?

The article is indeed very well written, but gives the wrong vibes, like something's coming: acquisition, pivot, split, shutting down, etc. Also, "we're re just getting started", the famous last words.

Just to balance my healthy mistrust, I'd like to add that I'm a satisfied Tailscale user, mostly impressed with how little it requires of me to just work.

[1] https://yggdrasil-network.github.io