"the media" indeed has a credibility crisis but I suspect the rise of alternative narratives about the world (social media) is the main factor behind rise of a sense of generalised distrust, which I'm sure we're all feeling right now.

What we call 'truth' is really just consensus (hence the importance of cancelling / de-platforming / downvoting etc - techniques to secure that consensus) and narrative violations from competing versions of truth which are able to persist is deeply disturbing. We're going to have to get used it - certainty is one of things 'the media' once provided to us but will never be able to do so again