Study: Climate change will reduce the number of satellites that can safely orbit in space.

No, the article says the exact opposite. The proposed problem is that less satellites de-orbit on schedule because atmospheric drag is reduced. Debris and derelict satellites stay in LEO for longer than they were scheduled to, and will be scheduled to stay in space longer in the future. Both of these factors significantly reduce the ability of LEO to 'carry' more satellites. This is amplified massively by mega constellations such as Starlink, but it's probably to their benefit; they get to keep their expensive littering satellites in service for longer and will use less of the expensive argon to maintain their orbit.