Start 2026, Your Experience Builder widgets call in any API widgets they will start to break. If you are building any EXB Widgets that use API Widgets now, you should be using Components.
https://community.esri.com/t5/experience-builder-custom-widgets/future-breaking-change-javascript-sdk-widgets-are/bc-p/1598567
Esri official announcement Feb 26, 2025
https://www.esri.com/arcgis-blog/products/js-api-arcgis/developers/javascript-maps-sdk-a-full-transition-to-components
Component Transition