Please, provide support to the subscripts and superscripts in ExperienceBuilder (at least in the text editor). See for example this similar approach on StoryMaps: https://community.esri.com/t5/arcgis-storymaps-ideas/superscripts-and-subscripts/idi-p/1087436
It is a waste of time to edit format when copying formatted text from a Word document or similar. Example of the pain:
