I don't think it is about technology - a camera module with NPU running YOLO can be had for like $30 from AliExpress. And a lot of other technological weapons is possible on a cheap, yet nor Russia, nor Ukraine are doing it.

In case of autonomous drones i don't see them bringing any noticeable benefit over FPV until they are deployed in the numbers an order or two of magnitude larger. Both countries seem yet to reach such number of drones. And the large task here isn't just mere production of the drones, it is the whole system of delivery/deployment/management of those large hives of autonomous drones which also needs to be developed/implemented.