The popup in Experience Builder in the map is pretty small - most of the popups I have designed for map that started out in Web App Builder have to be scrolled through now. And images in the popups often don't show up fully within the popup window. If you dock the popup, it makes it a bit bigger but still not as big as is needed for some nicely formatted popups with good information. See Justice40 November 2022 Version 1.0 (arcgis.com) as an example from esri_demographics for a lovely popup that can't been viewed easily in the new Map Viewer/Experience Builder.
If this isn't possible, maybe making it possible to choose where the popup docks and how big the docked window can be, and whether it defaults to docked or floating would help.
