Accessing the same array that populates the "People" column format

I have a list of tasks, each assigned to one or more users in a “People” formatted column. I’d like to filter a view of those tasks using a single-select control. I can’t seem to find a way to populate that single select control with the array of users that populates the drop-down in the “People” column.

Anyone have any tips?

Two options are to either manually list everyone using @, or, if your team is too big, use [Table].[People] as the formula for Selectable Options — it won’t access the full “People” array, only those that are assigned to a task. But since your goal is to filter, I guess that would make sense.