Disinformation an misinformation and all that more resemble newspeak terms than anything.

False information is still information. It's simply information that is false. There's plenty of true information that can lead someone to a false conclusion, just like there's false information that can lead someone to a true conclusion.

Most propoganda isn't dangerous because it's false. Overtly false propoganda is fairy easily disproven. The skilled propagandist will mix true factual information with emotional suppositions and assumptions to lead you to come to a conclusion yourself, albeit the conclusion they want you to arrive at, without having properly considered other potentially more convincing conclusions.

Something as simple as a Yelp review "This restaurant is the best ever!" Could be considered "mis-information". But even as such the conclusion is so subjective that the statement is utterly useless without the added context.

The goal with digesting any information is not so much to go outright determining the factuality of it, it's difficult to peddle overtly false information in the modern era as you'll quickly get found out if it's truly not factual, but rather to identify the difference between fact supposition and opinion and also to be aware of the authors own bias and what position they are advocating for.

When the propoganda is coming from the people in power naturally it is right to assume that the message is written to lead people to conclusions that benefit those in power. But that doesn't mean the propoganda itself is false. Usually, good propoganda is true, from a certain point of view at least.