I explored the new sheet tooltips feature in Amazon QuickSight and created a simple sample dashboard to demonstrate it. Sheet tooltips are a feature that many users will be thrilled about, as they enable rich contextual data exploration directly on hover — without disrupting the analysis flow. With sheet tooltips, hovering over a data point reveals detailed breakdowns, trends, and supporting visuals in a dedicated tooltip sheet. This makes dashboards far more intuitive and interactive.
More information: Amazon Quick Introduces Sheet Tooltips for Rich, Contextual Data Exploration