I've been through ATL a lot, connecting internationally to my domestic flight home. For some years, most recently in August this year. There has ALWAYS been a Global Entry line to get into the US, but NEVER a PRE line to get through security and onto the flight home.That is new, the last time I went through ATL, with Delta Dec 2020, they had a specific area for Global Entry.
That better be temporary, I don't pay for GE to stand in line.