What it provides is a opinionated configuration management - which is admittedly great which is why I use it as well, but it's nonsensical to say tailscale works in places where wireguard is blocked.
You're likely just noticing the preconfigured nat traversal which tailscale provides and never set one up yourself, as you'd need a static IP for that and it's unconfigured by default.
Tailscale uses wireguard.
What it provides is a opinionated configuration management - which is admittedly great which is why I use it as well, but it's nonsensical to say tailscale works in places where wireguard is blocked.
You're likely just noticing the preconfigured nat traversal which tailscale provides and never set one up yourself, as you'd need a static IP for that and it's unconfigured by default.