What is this “F-22’s NGAD successor” of which you speak?
The NGAD is the Next Generation Air Dominance program.
https://www.youtube.com/watch?v=nGOtjcv7dT8&ab_channel=Sandboxx
https://en.wikipedia.org/wiki/Next_Generation_Air_Dominance
The US Air Force has built and flown a mysterious full-scale prototype of its future fighter jet
https://www.defensenews.com/breaking-news/2020/09/15/the-us-air-force-has-built-and-flown-a-mysterious-full-scale-prototype-of-its-future-fighter-jet/
Next-Generation Air Dominance Platform (NGAD) Expected to Fly with Unmanned Drones
https://warriormaven.com/air/next-generation-air-dominance-platform-ngad-6th-generation-stealth-fighter