Joomla custom fields are finally displayed in backend user/article list with the help of free Alter Fields extension.
Additionally, paid Alter Fields Pro adds ability to sort, filter and search content items by custom field values.
Unfortunately, Joomla 4.4.1 and 5.0.1 introduced a breaking change in language files (no new lines in language strings).
We have just released the updates for all of these extensions. Please download the new versions from our website.