"Logitech MX Master 3S Feedback:

While the MX Master 3S is an excellent mouse overall, there's a design issue affecting its ergonomics. The lack of a pinky finger support on the right side causes the mouse itself to rotate 15 degrees to the left. This rotation makes it difficult and uncomfortable to reach the left-side buttons. I suggest adding a small pinky finger support in future versions to improve comfort and usability. Otherwise, the mouse is very good."