This is an ever-updated list of user-unfriendly Android applications that I've had the displeasure of using. If you absolutely still need to run them without sacrificing your current device, then the best way to go about it is to either run it under an Android emulator or on a separate clean device.
Celcom Life - Requires you to have Developer Mode disabled in order to use the app, moreso annoying over anything else.
CIMB OCTO MY - Would not work if they detect the presence of a "dangerous app" on your phone. It wouldn't be so bad if only they would actually tell you what app(s) it is, but I digress.
Flashcards World - Requires you to install the app from the Play Store itself, as installing it via APK or Aurora Store would pop up a prompt telling you to install the app from the Play Store.
Foodpanda - Requires you to install the app from the Play Store itself, as installing it via APK or Aurora Store would pop up a prompt asking you to install/update the app from the Play Store.