This has been an exciting year for foldable phones in the West. In the U.S., Samsung's de facto monopoly finally ended with Google launching its first foldable, Motorola made its return stateside after a two-year absence, and OnePlus is now promising an upcoming foldable. Over in Europe, Honor and Oppo have launched foldables, making for an even healthier scene. But of course, the most competitive foldable scene is still in China, where there are no less than seven brands actively putting out at least one foldable a year. The latest to hit the market is the Xiaomi Mix Fold 3,…