Samsung’s Galaxy Z Flip 6 is one of the most interesting phones you can buy in 2024, but it has a major limitation. By default, the cover screen can only be used to display a handful of Samsung’s own widgets, including Calendar, Reminders and Weather. You can run some apps by heading to Settings > Advanced features > Labs and turning on the option for ‘Apps allowed on cover screen’. But at the time of writing, there are just five available: Google Maps, Google Messages, WhatsApp, Netflix and YouTube. That’s a pretty poor selection, especially when Motorola’s Razr 50 Ultra/Razr+ (2024) can run …