In several graphics app such as Photoshop (or even other apps like Word), the view zoom is indicated at the bottom of the window:
Word for Mac
However, in Blender's image viewer, I haven't been able to find such a thing.
The only thing I could find is the View menu, which doesn't tell you which setting you are on but lets you click on one of them:
If I select "Zoom 1:1" then go return to the View menu, "Zoom 1:1" will not have a checkmark next to it
Is there a way to display the percentage of the zoom currently applied to the image editor?