Not hype... https://zerofrictioncycling.com.au/lubetesting/

I've been using the Silca Super Secret drip wax on my bikes. It started with just my gravel bike, but quickly became my standard for all my bikes. Other than being quieter and more efficient, the drivetrain stays cleaner, and so do things that bump into the chain. I can literally grab my chain with a bare hand without hesitation. I haven't jumped all in on the hot wax process...yet.

There are quite a few threads on this topic.