It was the same in France. https://www.lemonde.fr/societe/article/2011/04/04/le-cv-anonyme-penalise-les-personnes-issues-de-l-immigration_1503004_3224.html

You can run this into Deepl to get a proper English version. In short, anonymous CV increases discrimination against ethnic minorities, but decreases gender discrimination (where gender discrimination is understood as favoring the same sex as that of the recruiter, ie, men for male recruiters, and women for female recruiters).