The below issue is not a bug but inconvenient matter.
When select "Date" in "Field Type" area, it can select "date month year" style e.g., "19 Feb 2021" in either iPhone or android.
But selecting "Expire Date" in "Field Type" area, it can NOT select "date". It appears only "month year" selection in neither iPhone nor android. But it can input any date style format in "Expire Date" in Windows edition.
I usually use "2/Mar/2004" style format because anybody recognize what date is.
If writing "2/3/04", it means...
February 3rd 2004 in North America
2nd March 2004 in the most of Europe
2002 March 4th in Japan and some Asia.
I can input data "2/Mar/2004" style format in Windows edition. But if once editing in smartphone, the result is "2/3/2004" or "3/2/2004" depending on system. It should be selectable word style month i.e., Mar, Apr, Jun in addition to just figure style 3,4,6 preventing from confusing and/or misreading.
The date function is very important field on password management software.
So, "Expire Date" in "Field Type" area should be able to select "date month year" style even in the smartphone application same as Windows edition.