Disable analog stick input on UMG?

The solution mentioned by @jbl4ir essentially works.
Here’s how I’ve done it - I created a function that accesses the NavigationConfig from FSlateApplication, and setts the bAnalogNavigation to true/false.

#include "Framework/Application/NavigationConfig.h"

void AMyPlayerController::ToggleThumbstickUiNavigation(bool ThumbstickNavigationEnabled) {
	if (FSlateApplication::IsInitialized()) {
		TSharedRef<FNavigationConfig> currentNavConfig = FSlateApplication::Get().GetNavigationConfig();
		currentNavConfig->bAnalogNavigation = ThumbstickNavigationEnabled;
		FSlateApplication::Get().SetNavigationConfig(currentNavConfig);
	}
}