So, all this doesn't sound great, but... the specific accusation in the tweet is that they're tracking other applications that are open. Their privacy policy does not say they do that, and the Zoom twitter account says they don't either[0]. Now, it's a matter of trust, of course (and after [1] I wouldn't blame people for a lack of trust), but to state authoritatively that Zoom tracks other open applications seems like completely unsubstantiated fear-mongering.
Sure, as I said, the privacy policy isn't great, but the tweet specifically accused Zoom of tracking and recording what other applications people are running. There seems to be no evidence of that.
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