Oh, online IDK, I think it'd be hard to miss, but people do still end up in echo chambers. At home or in person? Who's doing the questioning matters too. What your friends think can matter a lot - if everyone is quiet because they don't want to become "part of the problem", no one is part of the solution. "Friends don't let friends drive drunk". I'd say that might well apply to at least try to "Friends don't let friends fall down conspiracy theories", "become neo-nazis", etc.

But given Daryl Davis, maybe we agree - the in person is way more important than online. But I will also say a lot of people report finding likeminded people online (in multiple contexts like religion, LGBTQ+, nerds, whatever) helpful in realizing "not everyone is different from them" and "not everyone thinks one way". And if only the loudest voices are left online, then we only see extremes. If representation matters, so does moderate representations.