They are supposed to start production in 2024 (which sounds very quick, considering they just started construction). No idea how quickly they can ramp up production from there, but delays wouldn't be anything unusual for a new semiconductor plant.

I've heard that the general industry estimates for something like this are 5 (up to 10) years. However, both Intel and TSMC's USA are saying 2024. Potentially related is that 2024 is a presidential election year.

It's like trees: a long-term investment, and you might as well start now.