Tap on search icon.
Type in anything that can’t be found i.e. dxpww0sksm3
Tap on a category or project.
Tap on the X in the search field to clear it (do not use the backspace key of the keyboard)
The menu “Search tag, persons, all” appears and it’s almost impossible to hide it again (except you select one of the three options and clear the search field with the backspace key of your keyboard)
iPadOS 13.3 beta 3. Agenda 9.1