While APKPure may still offer WhatsApp 4.4.4 for download, it's essential to note that:

Since “444” doesn’t correspond to any real WhatsApp release, I’ll assume you want me to for an Android modded or alternative WhatsApp build from 2021, numbered 444.

WhatsApp maintained support for older versions, including Android 4.0.3 and newer. November 1, 2021: WhatsApp officially dropped support for devices running Android 4.0.4 and older

In 2021, WhatsApp used a distinct four-digit versioning system (e.g., 2.21.44.44 ). The "444" in your search likely refers to a from around April to June 2021.