When I select the zoom percentage of 50% from the bottom left zoom level menu, I get 100% display, with 100% displaying at document title and 50% displaying at the bottom left. Similarly when selecting 25% from zoom menu, I get 50% for the document, while 25% at the zoom menu. Latest version 16.0 just installed today.
Preferences cleared, no change.
Likely related issue, when I open InDesign, the non-maximized window opens at twice the display size, i.e. at 8K resolution, so I have to drag it around from the titlebar to get to the edges to make it smaller.
Interface problems are often cache related. Did you also delete your Caches folder?
The scale shown at the bottom of the window is not the same info as the view scale shown at the top. (That would be pointless, I guess). It's the measurement scale, which may be the same often, but might be different on 4K displays. Check out Image > Analysis > Set Measurement Scale.
Check out Image > Analysis > Set Measurement Scale
That’s Photoshop, with InDesign the view scale is always relative to print output—100% view equals Print Size. The view scale in the lower left corner and the titlebar should always match.