Files: folder and file names not visible since upgrade to f31.

[home user]

(f31, gnome)

Starting with the upgrade to f31 earlier this month. "Files" (Nautilus) no longer displays names of folders and files.  I have made a screen capture available here:
"https://drive.google.com/file/d/1hh_G48m8bm-XWwMIR3mA_jJp9CJ75SvC/view?usp=s...".
I have done 2 weekly patches since the upgrade; the problem persists.  I've checked the man page, and the web page referenced by the man page.  No clues.  I've checked the preferences; there is nothing there that would affect this.  I've checked the "Help".  Nothing relevant.  I've checked the instructions for upgrading to f31; nothing relevant.

How did upgrading to f31 break this, and how do I make the folder/file names visible?