Archive title prefixes, like “Category:”, “Date:”, “Tag:”, “Archives:”, help (potential) visitors quickly understand on what type of page they’ve landed. However, if you so desire, you can turn off the prefixes.
Remove prefixes globally
To remove those prefixes globally, including the ones from the “WooCommerce” and “Modern Tribe’s Events Calendar” plugins, all you need to do is check Remove term type prefixes from generated archive titles? in the Prefixes tab of the Title Settings in The SEO Framework, as shown in the image below.

Remove prefixes per term
If the term has an admin-interface, you can set a manual meta title. The prefix will be removed if you enter anything into that field.

Author archives have the same meta title field under General SEO Settings on the author’s WordPress profile page.
Breadcrumbs never show prefixes
Since TSF v5.2.0, both in structured data and the breadcrumb shortcode, never add archive prefixes like “Category:”, “Archives:”, or “Author:”. This is independent of the prefix setting above. Meta titles you wrote appear as written when you use meta titles for breadcrumbs.