Nope. They stopped using explained Teflon many years ago. They’re now using expanded polyethylene and polyurethane. Which is what many manufacturers trying to be waterproof and breathable do and have done also.
Gore just happens to be one of the best (as demonstrated in the video), but is wildly overpriced. And they have very anti competitive practices that keep them dominant.
Still a great product(price aside), but a bad company.
Just better to do research and get more for your money with similar materials. Eg outdoor research AscentShell for 2/3rds of the price. Same breathability and water resistance, more or less.