WhatsApp has an internal "expiration date." If your app version is too old, it will prompt you to update, but since the Play Store won't offer a compatible version for 4.4.4, you'll be stuck in a loop. Options for Android 4.4.4 Users
WhatsApp has officially for Android 4.4 KitKat. whatsapp apkpure android 4.4.4
WhatsApp on Android 4.4.4: Is It Still Possible via APKPure? WhatsApp has an internal "expiration date
Support for Android 4.4 and older versions ended globally by early 2025. it will prompt you to update
Even if you successfully install a legacy APK from APKPure , WhatsApp requires an active connection to its servers. Once a version is deprecated, the servers will block that version from connecting, preventing you from sending or receiving messages.