(Excuse me if this has already been suggested or even added)
Some of the topics on the explore page are big squares, some small squares, some horizontal rectangles. This seems to be by a set order, changing if you follow a topic.
I think users should be able to customize the size of each, similar to a Windows start menu. They may also customize the order, so that ones they don’t use are at the bottom. Clearly this will make it easier to find topics people care about.
Side note: Topics that are followed should be big, not only at the top