The File Manager app allows you to navigate or search for files on the device.
Press the name of the folder icon you want to open, files within those folders will display.
You can set search filters to limit your search to documents, videos, images, music, recent files, or files exceeding 10 MB.
Tap the search icon at the top and enter the filename or keywords. As you type results will display.
Boolean search characters do not work (e.g. *.apk). Instead, simply type apk or .apk.