After rules sort incoming emails to folders, how do I find 'unread' emails?

The bolding seems to be turned off when an unread email is sent to a folder by a rule.  If I use rules to sort incoming, how do I locate new emails?

Hi, not sure if I completely understand your question. If you use rules to sort emails to different folders, you can find those emails in those folders. There’s also an indication next to that folder that there are unread emails in the folder.

Thank you,
Paul.