It would be wonderful if a new view and a new card for dashboards would be created that compares different custom fields to each other and appear as a matrix or table with a count.
For example, for our larger projects, each project has a study lead and could have multiple study supporters. The study lead and study supporters are people custom fields. Someone who is a study lead on one project could be a study supporter on another project and vice versa. This type of view would allow us to compare the two of them so we could see, for example, here are all the study leads for the top row and here are all the study supporters on the first column. The matrix shows the matrix then shows the count of how many projects each study supporter is for each study lead.