In Workshop activity module, it is currently possible to make student review anonymous via modifying activity permissions, as documented on here:
https://docs.moodle.org/405/en/Workshop_FAQ#How_can_I_make_reviewing_anonymous?

However, modifying permissions at the activity level requires the teacher to have quite a deep understanding of Moodle.

Do you have any plans to make this easier, e.g. adding an option to Workshop settings page?