All Buddypress Xprofile values are stored in a different / not WP default table in the database called ‘{prefix}xprofile_data’.
Our plugin only reads data from the postmeta table related to (custom) post types unless we’ve create a specific addon for it, like ACF and WooCommerce.

To support Buddypress Xprofile data for the user overview, you can create your own column or addon.
I recommend to wait to write your own addon as we are planning to release 4.0 which makes it easier to write custom addons.
You can have a look at this page to write your own column for Admin Columns Pro.
https://www.admincolumns.com/documentation/developer-docs/creating-new-column-type/

I’m not really familiar with Buddypress but I guess that it has it’s own functions to retrieve the values for Buddypress Xprofile data.