Option for the grey background to disappear when closing a document

Hey all...

I don't remember when this happened, but I'm finally fed up.

When you used to close a file, the gray pasteboard would also go away, so you could see your desktop. 

I was just doing some work in Quark (which I am tempted to switch to because they support Pantone colors and Type 1 fonts, and when you have spent multiple thousands of $$ on Postscript fonts, it's a pain to have to re-purchase...but I digress)...anyway, I close my Quark file when I was done, and though my workspace was still there, I could see my desktop (as InDesign used to do). It was so nice to see all of my Finder windows there so I could click on what I wanted.

Well, the next file was in InDesign. Quick change. Close the file and that blasted grey background is still there and I have to hit yet another "close" button.

Am I just missing a setting somewhere that will get rid of that? I've messed around with it a little today and have numerous times since this happened with whatever release...and I can't find a way to disable it. If there's not a way to disable it, can Adobe please get rid of this? It's so annoying.

Using InDesign 20.1 (haven't updated in a bit, but will this weekend); running Mac OS Sequoia 15.1.1

Thanks.