As of late 2022, the final versions of the Google Play Store compatible with Android 4.4+ (API 19) were released. Modern versions of the Play Store (v33.0 and above) generally require Android 5.0 Lollipop or higher to run. Without the correct legacy APK, you may encounter server errors or "no connection" messages even if your internet is working perfectly. Step-by-Step: Installing Google Play Store on Android 4.4.2
Congratulations! Your KitKat device should now have a functional Play Store.