While users with extremely old hardware might seek a 32-bit "exclusive" version to save RAM, the official developers recommend using a lightweight Linux distribution instead of attempting to run modern Atlas scripts on 32-bit systems.
of removing Windows security features in more detail. atlas os 32bit exclusive
Therefore, The official development team focuses entirely on 64-bit architectures to deliver the latency reductions and frame-rate improvements modern gamers expect. Why 32-Bit (x86) is Phased Out While users with extremely old hardware might seek