A lot of it comes down to addressing some of these bigger systemic issues around the platforms. If you can address the root cause of bad information and junk information being able to spread so quickly across social media platforms, then you could also address that while protecting freedom of speech.
Many of the systemic problems, to me, have to do with the whole idea of the attention economy and how, in a world where information is everywhere, attention becomes our scarce resource. Platforms are built on that attention economy. They're designed to tailor content and information and advertisements to us that are going to draw us in, which is what a lot of this junk news does. It's clickbait content. It's designed to get our emotions going and to make us feel angry or happy, to get our attention.
If you can start addressing the way social media tailors content to users by looking at the actual principles that go into their algorithmic design—relevance and virality, for example, are things that are very important to the algorithm right now—and switch those to be principles that would support better democracy, then you can start to regulate the platforms in ways that wouldn't harm free speech.