Android phone is S23, latest firmware, and rooted. Magisk-zygisk, LSposed, and KnoxPatch are used to enable most Knox features. Issue discovery process: Using Shelter or Island to create a work file, found that apps installed in the work file cannot function normally, including Chrome, Zhonghang, WeChat, and Genshin. Generally, they hang or directly crash. Checking logs shows that these apps cannot use the work file's SD card or Android file directory. Later, using Root Explorer to open /storage/emulated/, found that only two folders exist: 0 and obb. Also, unable to create new folders (although displaying read-write permissions). Using the ADB command to create folders fails, mkdir: '/storage/emulated/11': Permission denied. OneUI's app dual-opening feature creates a new file folder in /storage/emulated/, but unable to operate on it, proving it's OneUI's limitation. Originally, can try TWRP's new folder creation, but I didn't install TWRP initially, and now the phone is clean installed (officially released last month). Seek help: Is there any method to create a work file folder in /storage/emulated/?