These have their text wrapping set to “Top and bottom”. A few need to be absolutely positioned on the page, however. I have a long document with lots of images, most of which are inline (text wrapping set to “In line with text”). I don’t know if this is a bug in Word for Mac, or if Microsoft somehow considers this a ‘feature’, but it is bloody annoying… I am using Microsoft Word 2019 (16.67) on macOS Monterey (12.6.1).