On the Collection Breakdown page, would it be possible to get the Genre Breakdown graph moved to its own separate row on the page? I have so many genres that, even if I fullscreen the window, all the genre names are smashed together that you can't even read them.

Yeah, the genre chart has always been a difficult one. Even if it went full width, I'm not sure it would be usable (although it would be better). I could do something where the "smaller" ones are lumped together in an "Others" category, which would help a little bit. I could also convert it to a tree map, which is what the Platform Breakdown (bottom right) uses. That would still have the same problem in terms of the text being hard to read for certain ones, but I think it would still look a lot better visually since that chart type is better equipped to handle it.