Viewing files Zoom% increments?

When I am viewing a file on Monday.com (PDF or JPG) I can sometimes only view the document at 25%, 50%, 100%, etc. When I press the +/- buttons, it jumps in 25% increments. BUT sometimes in jumps in 10% increments. There seems to be no formula for the erratic behavior. Viewing in only 25% increments is problematic. The file is either tiny, or wont fit on the entire screen. Using the “fit to document” command also makes the document tiny. Help?
Please and thank you, Monday.com community.