You might have seen a warning under Cookie Banner settings
Categories are mandatory for your statistics configuration
This warning will be activated when the below question from the wizard is not answered with 3 checked boxes.
The cookie scan detected Google Analytics or Tag Manager cookies on your site, which means the answer to this question should be Google Analytics or Tag Manager.
Unchecked, your integration of statistical cookies will be considered not privacy-friendly, and therefore, a dedicated category for these statistical scripts is necessary. This warning was added after a 2019 CNIL guideline update.
Although within the EU the use of categories is legally required, it is possible (at your own risk) to disable categories if you wish.
To read more about the update of CNIL Guidelines, please read this article.