Taiwan isn't getting invaded. Not today, not tomorrow. It's all posturing.
If it's all posturing, it's pretty good posturing and it's pretty expensive posturing. The PLA and PLAN is being directly built up to win in Taiwan and challenge in the East and South China Sea. They have been pretty loud about setting a deadline, though it is still a way aways and the current leaders will most likely be dead by then so no real accountability. Despite the terrain the Chicoms have been building up their indirect fires to the point that they have some real ability to put down some hell on Taiwan, regardless of the terrain. It's expensive of course, but it's not like China is running out of $$$. Taiwan has been pretty lackadaisical. The US figured their best bet was pulling further back, out of Okinawa, but that just makes it harder, not easier. It's hard to defend Taiwan from Guam or Hawaii.
To me, the only thing that would make it all posturing is the Chinese people's lack of belief that a war would ever really happen. But I don't think the Russians in Rostov Oblast ever really thought there would be a war against Ukraine. It's possible Xi is looking to take advantage of things in Europe right now.
The US reached across the Atlantic Ocean and slapped the Russian Army directly in the face.
Hmmm. I rather think that it was the Ukrainians that did the slapping. US and NATO weapons, training, and advisors played a part, but history has shown that just equipping an army with western weapons doesn't guarantee victory.
Certainly not until it's solved the problem of Big and Modern in a legacy army. Like Russia, the part of China's army that's Modern isn't Big and the part that's Big isn't Modern. Ukraine proved you can't rely on the Modern part lasting long enough for the Big part to be telling.
I don't believe that the lesson should be that the Russians didn't have a good enough or modern enough Army to win in Ukraine. I honestly think they did. They just used their army, and in particular their air force, incompetently. It was their officers and generals and soldiers that sucked, not the equipment.
I don't think I can fully compare Russian troops to Chinese troops. Anybody who has ever seen the Asians in action know that they have a few things down pat that the Russians don't. Discipline for one. Whether Chinese officers and generals are really that much better than the Russians remains to be seen. But I have a feeling there is less corruption in China than in Russia. The Chinese don't seem to put up with corruption the same way the Russians do.