Adding a title on a chart can be used for:

• accessibility
• limit the space wasted by each axis title, moving such information on the chart title
• Can help on disabling the legend if we consider moving the legend items/colors in the title
• Helps on align the chart styles across different chart types (metric/bullet/line/bar/treemap/small multiples)
• Replace the Kibana Dashboard panel title within the chart itself

Chart types:

• Add title to Metric charts #1928
• Add title to Cartesian charts
• Add title to Partition charts
• Add title to Gauge/Goal/Bullet graphs
• Add title to Heatmap
• Add title to WordCloud

Related Kibana Issues:

• [Lens] Support metric vis title kibana#137770