Dmytro Zolotukhemin at the Institute of Information Security in Ukraine has an interesting take on this which he talks about in detail on an interview with Silicon Curtain on YouTube. He asserts that the idea of disinformation is so slippery and hard to work with that it is not worth it. What we really have is stories that people share. His idea is that the right way to regulate this is to provide people with tools for assessing information themselves. Basic critical thinking and internet searches can go a long way to revealing both truth and ambiguity. This is a specific variation of the idea that the answer to bad information exchange is more and better information exchange.