I would like to be able, on all platforms, to zoom in on larger versions of all album covers.
I listen to a lot of classical music, and there are almost always multiple recordings of a given work. So for example, I might search for something like "Mahler 3" and then scroll to see which recordings of that symphony are available. But unless I happen to recognize the cover art from the thumbnail, it can be difficult to tell which orchestra is playing, with which conductor -- and those are important to me in determining which recording I want to listen to.
The issue is particularly bad on the mobile app, where the cover art is tiny. On all apps, I can click through to the album to see more information, which usually includes what I'm looking for, but on mobile and in my browser that information is often truncated (and in the Windows desktop app, I often have to maximize the window to see all the info).