Are you talking about the same thing they are talking about in this article?

https://www.cyclingnews.com/news/cla...n-pro-peloton/

If and when it gets offered on new bikes at my price point and will do what I need, then I'd have no issue with it. I'd have no issue with a purely IGH hub if it had the price, weight, gearing range and other things I currently expect from the derailleur system on my bike today.

It's not a new concept. DIY'ers have done this long ago. Sheldon Brown wrote an article about a bike he built with a IGH hub and derailleur system quite a long time ago.

It might be where bike technology needs to go for a while to deal with 1x limitations.