If you still need to attempt an installation for legacy purposes, follow these steps to sideload a compatible APK:
On Android 4.4.4:
Android 4.4.4 (KitKat) is now considered a "legacy" operating system. Modern versions of the Play Store are designed for Android 10 and above, meaning the latest APKs simply won't open on your device. play store download apk android 4.4.4