Economists distinguish between open and hidden unemployment, and I think it is possible to introduce a similar distinction in the area of gender inequality.
I will define open gender inequality as that which is reflected in all the traditional gender indicators, such as gender gaps in school enrolment, gender differences in labour market participation rates, gender pay gaps, etc. I would usually have referred to the World Bank’s World Development Indicators for such data, but they have been updating their website, and I can’t find anything anymore. The United Nations system for SDG indicators is even worse. Instead, Our World in Data has vastly improved, so that is my new go-to site for all kinds of development statistics, including gender inequality data (https://sdg-tracker.org/gender-equality).