By default, user/applicant details are not presented for reviewing, only application details, however, you can activate select applicant information to be displayed.
Display applicant name on reviewing views
In the Manage workspace, go to Reviewing > Settings > Score sets
Select the score set where you want to show/hide applicant details
Open the 'Display' tab
Under the 'Display' heading, select Applicant name
Click Save
Some points to note
User fields have their own visibility settings and shouldn't be confused with the 'Applicant name' setting from the display settings. User-resource fields can be individually made visible for reviewers per score set.
A user field set as 'visible for reviewers' will only appear if the user has provided information for that/those fields.
The reviewing PDF follows the visibility settings for the Scoring mode - if you want the applicant information to display in the reviewing PDF, set visibility.