Some media outlets lie sometimes, others (OANN, Fox) lie a lot. But at least there are some regulations. Sources you find on YouTube, Facebook, et al are almost completely unregulated and unreliable. So if you find a news story that seems unlikely, confirm it with other reliable (and yes, MSM) media sources.
I agree that there's no proven basis for that OK Ivermectin story, but you also don't see me pushing it. However, you seem to have taken the message that the media is unreliable SOMETIMES and read that as ALL THE TIME, to your detriment.
This is what Putin wants you to believe.