Sometimes the zoom makes everything bigger except the manga page, which gets smaller instead...
https://imgur.com/a/AMHXSjC
There's an example of what I mean.
So yes, I think having a built-in zoom utility on the Mangadex UI is useful.
As in the title, can we have a utility that lets us zoom in on manga pages please? I've often wanted to do so on pages that are a little too small to read comfortably and have to use Windows Magnifier as a stopgap measure at the moment.