Any stealth bomber is going to be some sort of flying wing. It’s pretty much the only shape that would work.
The key details to look for is if it has vertical stabilizers.
You can get pretty good stealth by canting these at an angle (like proposed later models of the F15), but none at all is best for stealth.
Getting away with “none” requires really clever computer programming and engines and control surfaces that micro adjust as the software tells it to.
I doubt the Chinese could pull off “none”. Earlier prototypes of this jet had vertical stabilizers.
The second thing to look for is engine output and intake. Best is “all on top of the wing” that blocks IR from the ground and (to a degree) most other directions. This is a crappy place to put engines, so again requires a powerful engine that is also able to be microadjusted. I suspect the Chinese will punt on this, as well, and have front intakes and a top mounted exhaust.
If they pull off no stabilizers and a top mounted engine, they stole tech.
Or, found the "Prandtl-D" NASA paper(s) how to add enough washout to get Proverse Yaw and eliminate the B-2's Drag Rudders, and never need rudders.
Based on Birds, and a long lost Prandtl paper, the Hortens stumbled close to it, if not in it and others, but all those that stumbled upon this realized who did what before them, long story.
Google it, and Utube it. Fascinating stuff, maybe too new for them to add it....