You are not alone. I’ve seen articles and posts here that China is already moving in and others that say the taliban hates China. Unless you are an eyewitness, it’s all speculation at this point. It makes perfect sense that China fills the void but nothing right now can be interpreted at face value. It should be pretty easy to convince the world that the taliban plan to partner with China. All you need is a warm embrace between Chinese and taliban officials but I have not seen that yet.
The other thing to consider is:

whatabout the clowns that are embedded there. Not just American clowns either. It’s a melting pot related to arms, narcotics and money laundering. That story has been kept from the public. Who will clean out that infrastructure or do they ? It’s far deeper than most of us have even thought about until now.