I think this is currently in progress. Faith in the mainstream news is on the decline. As more of my peers get covid and experience it personally, everyone in their circle has radically shifted their view on it - and sees it as benign.

A liberal friend told me than OANN has taken over Fox News in terms of viewership.

It isn’t so much the independent evidence available as people’s anecdotal experience and it’s total discontinuity from the mainstream that is undermining the faith in MSM, and there are a lot of people who won’t openly say it. Yet.