How to use Mona font? Why can't my ps, ai and so on use Mona font normally?

Normal use of Mona font requires downloading traditional input method, and it can only be fully used if you switch to traditional Chinese input. Generally simplified, the display is incomplete, and the available Mona fonts displayed in AI and PS are in the last column of font selection. For example, Mona's ultra-black font selection is displayed as MStiffHeiHK in English. UltraBold is Mona font, and Chinese names will not be displayed. Simplified and traditional inputs are shown in the figure.