When you have a group of related elements, such as several links in a breadcrumb or steps in a multi-step flow, with one element in the group styled differently from the others to indicate to the sighted user that this is the current element within its group, the aria-current should be used to inform the assistive technology user what has been indicated via styling.
Should we add a visual styling? This isn't a breadcrumb, etc... But? Dunno. What do you think?
Related to adding
aria-current
to the main nav.MDN says:
Should we add a visual styling? This isn't a breadcrumb, etc... But? Dunno. What do you think?