DJI as consumer and professional drones seems like they‘re most certainly they are also an R&D leader given the fact that there are essentially 0 western competitors.

When it comes to more commodity tech, batteries immediately come to mind. Chins has spent years funding battery research and they are now the biggest supplier for LiIon batteries of basically all kinds. Solar panels seem like another example.

Every category I can think of where China is near-first there is some international manufacturer that has a better product.

Several areas where there are much higher volumes or outstandingly better value though. Things like automotive lidar, construction assemblys (like double glazed window units), consumer electronics like quadcopters.

Bambu wasn't good enough? Perhaps BEVs are?

DJI for consumer drones could be one? They make really good products, including vlogging and action cameras too.