It seems more likely that Russia and China are still decades behind the US but considerably more willing to hype up technology they don't actually have. China has made some progress but they are a long ways behind. Russia, well, ... Ukraine is demonstrating how stagnant their military capability has become. I kinda wonder how many of their nukes would actually fly right now if they were crazy enough to push the button.
> Russia's failures in Ukraine mostly stemmed from failures in their logistics and doctrine rather than their technology
Russia’s reactive armour had egg cartons in place of explosive. The same oligarchs are delivering these weapons. Meanwhile, Moscow’s “smart” weapons missed entire airfields.