When the end of the line is a Chinese symbol, it may appear that the rendering is based on the width of the visible content of the symbol, without considering the side bearing of the Chinese symbol, while the layout is calculated based on the full width of the Chinese symbol. The Chinese symbols should have been placed on the next line for rendering, but they ended up being partially placed on the previous line, resulting in a blank line below.
Please refer to the Chinese exclamation mark in the attached image for details