Not that I have seen. map[T]struct{} is more common, with if _,ok := m[x]; ok {} used for testing if a key is in the map. The space savings really add up with large sets.
At least at Google, map[T]bool is more common, by an order of magnitude. Probably because map[T]bool is recommended by our official style guide, which tends to favor readability over a negligible performance difference.
That is largely a distinction without a difference, the main gist of my comment was that using an interface{} value, while convenient in some ways, is way costlier than necessary (at least in memory) without any real advantage.