For readers, it is confusing and messy to know which platforms acts as a medium for communications. And usually these platforms require login, or nags for it, and doesn't show posts on chronologically to get clear understanding of the news events.
For organizations, there is a risk of shadow banning/closure of account, therefore not having any control of archivability and visibility of communications.
The best and clearest approach for communications probably is your own website with comms section, and post one-sentence summary + link to your website for a variety of social medias for greater visibility. There should be only one long-standing statement/source of truth for each newsworth event. Except of course if your strategy is to manipulate audience with confusion.