No, H1-B is a "dual intent" visa, i.e. you are allowed to transition from one to a green card. Something like a TN visa is actually intended for temporary skilled workers.
The H1B terminates in a green card, after six years, quota willing. In fact, you don’t get an option in the matter. Compared with a true temporary work visa, like China’s Z visa, which can be renewed on every year indefinitely and doesn’t have any oath to permanent residency.
> The H1B terminates in a green card, after six years, quota willing. In fact, you don’t get an option in the matter.
What?
Most do, because usually people want to stay. But H1B does not “terminate in a green card” and you 100% have an option in the matter (you have to sign the I485…).