I’m confused about one thing, would the (potential) organisms be floating/growing/dying entirely in the habitable region of the atmosphere or would it be rising from below?
Your guess is as good as anyone's at this point of our knowledge, but, if they are growing entirely suspended in atmosphere, I can imagine that, even though for most common elements (oxygen, nitrogen...) passive diffusion (like respiration) would suffice, for rarer nutrients these organisms would need some kind of "scooping" to gather and filter bigger swathes of air.
Although these organisms may not exist at all, for all we know...
The question I have is how they could get access to micronutrients up there. On Earth, there's dust blown from dust storms, etc, but my read on Venus is that there's not a ton of circulation between the hellish surface and the upper atmosphere.
Could also have been brought to the upper atmosphere by a piece of earth blown off earlier. Would be epic to find it might even be shared earth DNA-based life.
But it's most likely just unusual high temperature processes in the Venusian atmosphere.
