Tahoe aerial screensavers storage location?

There are 79 available Landscape screensavers. Settings/Wallpaper/Screen Saver/Landscape.

Most have the downward arrow displayed on the thumbnail that you click to D/L that one. A few, apparently, are already downloaded.

I had already used a few in rotation with Sequoia, b4 I upgraded to Tahoe.

I went through the list & D/L all the ones with an arrow!

I cannot find where they are stored on my mac! I want to see how much space each one takes up. I think ~ 500MB. They probably all .mov files.

I searched & found several sources saying they are located here:

Macintosh HD/library/application support/com.apple.idleassetsd/customer/4KSDR240FPS

But I see only 5 .mov files there. I cannot find the other 74 files!

The other 2K & 4K folders in "Customer" folder are empty.

Where are they?

My current screen saver (I set it to rotate every 12 hrs.) is NOT one of the 5 in that 4KSDR240FPS folder.