I often find myself needing to make label expressions that include tables to present environmental data. Me and my colleagues often resort to making labels in MS Excel, and copy/pasting onto our layouts.
I know ArcGIS Pro already supports a number of html-like tags inside label expressions to bold, underline, and color text, etc. Greater support to html tags, particularly table tags (<table>, <tr>, and <td>) would allow me and other users the ability to create better end-products.
HTML is already supported for web-map pop-ups:
https://www.esri.com/arcgis-blog/products/arcgis-online/mapping/combining-arcade-and-html-for-a-real-life-pop-up-display/
It would be great to have this is our labels and annotations.