Mac Mail 13.4 missing column headers
Title says it all. I know this has been raised (and not resolved) before, but I need to raise it again. It was suggested that people could revert to a previous version of MacOS to get to a previous version of Mac Mail that has headings for the email list. I would like to know how far back I have to go on Catalina (10.15.x) to get this functionality back.
My school is forcing me to move to modern authentication, but the version of Outlook that goes with Catalina doesn't support modern authentication either (go figure). I need my Mac mini, but Catalina is as recent an OS as I can install. I thought I would be okay with reverting to Mac Mail, and I am okay as far as modern authentication goes, but now I cannot manage my columns. And Apple passive-aggressively won't fix their silly mistake. How ridiculous is this?
So... will going to a previous version of Catalina get my mail columns back? How can I find a version of Catalina, say, 10.15.6?