The Xiaomi 15 has undergone professional inspections to ensure that the tactile feel and functionality of its buttons meet quality standards. Through extensive research and data analysis, the button resistance has been optimized to provide a comfortable experience. However, individual preferences regarding button feedback could vary. If you feel that the tactile experience is not as expected, it can be due to differences in personal perception or adaptation to a new design. Rest assured, this does not affect the normal usage of the device. Thank you for your support and understanding.