Catalina Mail - No columns

Where have all the columns 'from, size, date, subject, ...'sort selection, customization gone in OS X Catalina (Mail 13.0)? Long time passing. Where have all the columns gone. Long time ago. Where have all the columns gone? Apple has killed them all.

For those you old enough to remember there was a time when Apple users would laugh at Windows users. Microsoft would put out new OS's at the drop of the hat. Each one would be ugly and messy -- provide few real new features (in fact many didn't work at all) -- and totally screw up users.

Well meet the new Microsoft. It is Apple.

What is the application that I start and end each day with? That I use constantly throughout the day? It is email. And some brainiac has decided that being able to control how I display my mail is "old fashioned" and unnecessary.

Apple if this was a temporary mistake. Please let us know.

Thanks

John