Cannot place folders on left hand side of desktop
After updating to Tahoe 26.0, I cannot place folder icons in a certain region of my desktop. The blocked region is a rectangle on the leftmost side. When I click on my desktop, the stage manager appears in the rectangle. It's as though the stage manager is somehow blocking me from using my full desktop to display folder icons.
This is a nuisance as I have a lot of folders and valued that desktop space. I don't want to use stage manager, it's just a nuisance. How can I restore my desktop to the size it used to be?
Attached is a photo of the blocked rectangular region. I try to drag folder icons into it, but I cannot place them there. On the rightmost side of my desktop, folders are piling up on top of each other because of the artificially restricted space.
Thanks for your help.
[Edited by Moderator]
MacBook Pro 16″, macOS 26.0