Most of these so called Western military experts are just lazy and repeat the same thing again and again. China's military is strongly influenced by Russia but have drifted away from Russian war doctrine and weapons years ago. Even during the Korea War, China war fighting isn't the same as Russia.
Chinese weapons are similar to Russian weapons in some ways (though even here there are significant divergences in naval architecture and support aircraft) but here the PLA's emphasis on People's War and networked warfare show through.
But in general, I'll just talk about ground combat.
Russian strategy ever since the 1930s is "deep battle". Basically, attack across a broad front to achieve recon in force. Pull back in places where resistance is strong, then commit reserves to places where resistance is weak, then punch through and hit the supply lines/encircle enemy troop concentrations.
This is very similar to Nazi German blitzkrieg with an emphasis on off-road maneuver (tactical mobility), artillery and concentration (not necessarily numbers though both Germany and Russia had it too). This is why they designed so many tracked vehicles but not that many wheeled ones (wheeled vehicles worse off road). This is why they had requirements for T-72 being small (they needed something that can cross temporary bridges). However, the emphasis on tracked vehicles also means they are tied closely to railways (tracked vehicles are far less efficient than wheeled and need to be transported by rail) and have a huge logistics train (for their artillery munitions and tank fuel).
Chinese strategy is very different. Chinese strategy is essentially People's War. This historically was close quarters ambush warfare with lots of light infantry able to function independently of supply lines. Today PLA still maintains the essence of People's War: independent maneuver elements able to function with a minimal logistics train and able to move themselves to the battlefield fast and without delay (strategic mobility).
This is why PLA has pushed machine guns, grenade launchers and antitank missiles to the lowest level of infantry, and has tons of wheeled vehicles that are usually only tracked in other countries, like heavy artillery. Wheeled vehicles have strategic mobility to get to the right, while heavily armed infantry with squad level weapons can operate with a very light logistics footprint.
As for how this will do: imagine the US in Korea or Vietnam only had air parity and instead of facing guys with only assault rifles and RPGs on foot, faced 155 mm artillery that seems to disappear after every shot and heavy infantry with wheeled APCs, ATGMs and drones that carry their own food and ammo. Whenever an M1 maneuver element tries to punch through in maneuver, there's always an ATGM team waiting, backed by APCs and artillery.
They can shell an area for days, and think it's clear, and in the few hours they take to get there... An ATGM team is already set up again.