In Big Sur and Mail 14.0, I see color-coded folders for flagged mail. But, when I go into each folder, the colored flags are missing. This was not the case in Catalina. Is there a way to display the colored flag for each flagged message? To clarify, emails flagged RED appear in the RED folder but they do not have a red flag. In addition (and this makes no sense), if a message is flagged, for example, in Inbox, the flag does not appear. The only way to tell if it is flagged is by going into the appropriate Flagged folder.

I found a workaround at this Apple discussion. The Inbox now shows the colored flags but the mailboxes that isolate those flagged messages do not. Still, it's an improvement.

EDIT: I applied the same fix to the Flagged mailboxes and now they show the colored flags.