There are obviously degrees of support. Sure, China could support Russia more than they are now, but they'd be risking their ability to trade with Europe and the US, so they don't.
Agree with the other commenter here re: degrees of support. If the US had fully supported Ukraine the war would also be over (unless China stepped in to help their nominal ally)
Very lopsided support. US and allies offered heavy munitions, HIMARS, Jetfighters. What did China give to Russia aside of FPV drones, Holosun optics and Baofeng radios?
I'd say if China also sent Type 99, PCL 181, PCL 191 and scores of AEWC drones then it's all over.
To paraphrase the Chinese rep on the UN. If China indeed supported Russia, then this war would have ended by now.