Well, it wouldn’t change the gravitational field of any given planet so the atmospheres around planets would exist still but they might become more air saturated. The other thing to consider is that since this air would be so far away from the gravitational fields of many planets that it would actually get pulled into the sun over time, increasing the mass of the Sun and further accelerating the collapse of the solar system. By how much I could not tell you, but eventually the extra mass being dumped into the vacuum of space around our solar system would increase the mass of our star.

My brother in law has appendicitis, my 'rents have head colds, and I am still suffering from a 6 day sinus infection and COVID head fog from Thanksgiving but otherwise we’re peachy