After Sequoia, pages now goes to full screen

I updated to Sequoia 15.0 (my Mac now says it is up to date) and I have the same problem as Brian7358. If I open a pages document and I want to move the whole document to the right side of the screen, adjusting size and position on screen so I can see all that I have on the screen, it automatically jumps into full screen mode. All I'm doing is putting the mouse arrow on the upper right corner of my document and trying to drag the document to the right, I'm not touching any of the arrows etc. The pages document jumps to full screen and I have to take time to put the mouse arrow again and make the page smaller. Is there a fix for this please?