QuickSight authors can now improve readability of points on maps visuals by changing the point style to heatmap. This new way of displaying points on maps, transforms individual points into a heat layer using color gradation, enhancing the readability of densely plotted, overlapping points.
This is a companion discussion topic for the original entry at https://aws.amazon.com/about-aws/whats-new/2023/06/amazon-quicksight-geospatial-heatmap-points-maps/