Using an outdated APK on Android 4.4.4 comes with several trade-offs: What are the OS/system requirements for Discord?
To get the best experience on KitKat, you need to find "Legacy" versions that predated the major architectural shifts (like the move to React Native). discord apk android 4.4.4
: Often cited by the community as the most stable "last" version that reliably supports Android 4.x. Using an outdated APK on Android 4