Try asking chat gpt how to arm an insurgent group to overthrow the government. Or get it to admit the usa is a democracy in name only.
The difference is that we don’t see propaganda for what it is when it’s just “common sense” or the values being propagandised to us are ones we agree with. There are explicit censors in chat gpt.
That’s a little histrionic. A large part of propaganda is censorship, it is propaganda when the Chinese government censors discussion of e.g. tiananmen square and it is also propaganda when a mashup of laws and commercial interests prevent people from openly discussing or educating themselves on political tactics. The essential essence is controlling what ideas are normalised and permissible and which are not without engaging with the substance of them.
Not all propaganda is bad, you probably agree with some stuff like indoctrination of people with the idea they have a moral obligation to help their community, or to first attempt resolution of problems via legal means.
There are obvious differences in how and what gets supressed or encouraged but you are completely naive if you think that all states are not explicitly propagandising their populations. They are not benevolent guardians they are weird machines of flesh and ideas which project power because those that don’t get selected away. If you think being clear eyed about the unreliability of emissions from LLMs is cover for chinese statecraft you are a paranoid moron.