Atmosphere was a 32-bit plugin. As modern computers moved to 64-bit operating systems (like Windows 10/11 and macOS), the original Atmosphere stopped working without specialized "bridge" software.
In 2008, Spectrasonics discontinued Atmosphere and replaced it with . Omnisphere included all the original Atmosphere sounds but added a vastly more powerful synthesis engine.
There is no "2022 version" of Atmosphere. The software hasn't been updated in over a decade. Any site claiming a "latest 2022" version is lying to appear relevant to search engines.