I honestly don't think China cares what US thinks because they have Americans by the balls. The US economy cannot function without Chinese exports. Period. Did you see how Trump was behaving in China? That tells you everything. Not only will China be testing their AI for drones in Ukraine, they will also continue to cut off rare earths supply to the US which is what you need to make components for these drones.
And I expect there will be strikes coming. I also don't understand Ukraine's strategy. It's important to remember that Putin is a moderate, and if he lost then it would almost certainly be somebody much more hard line, and then gloves will come off fully.