In this case, the app has its own keypad when logging in so I'm not sure what the added value is security-wise. I'm just not able to launch the app while an F-

In this case, the app has its own keypad when logging in so I'm not sure what the added value is security-wise. I'm just not able to launch the app while an F-Droid keyboard is set as default which is just annoying. There's many keyboards on the Play Store that I wouldn't trust to install and use.