I'm assuming you're talking about China in this.

Yeah no. For anyone just randomly complaining about the government, in order of frequency of "enforcement" used, frequency decreases exponentially: 1. No one cares and their post stays up forever; 2. The individual post gets removed or prevented from being posted; 3. Their account on that platform gets banned. The platforms in China like WeChat, the Chinese version of TikTok, etc are still private platforms by private companies btw.

Oh look! Some actual legislation on the subject! https://lemmy.ml/post/69688/comment/60571

It's only when you go beyond just criticizing the government and into advocating for violence, civil disorder, and coup when you actually get into law enforcement response and potential jail time. Which, by the way, is absolutely also true for Western countries, go ahead and point to a single Western "free speech" country that doesn't outlaw those in their legislation, I'll wait. By the way, despite popular Western belief, there are no "illegal speech" crimes that are punishable by death in China. They have these nifty things called "maximum punishments allowed by statute" just like the West, and death is only on the table for the most serious crimes like murder, rape, etc, just like the West.