Transfer any geodatabase field properties from users' input to the tool output. On the Analysis tab, in the Geoprocessing group, click Environments, and check the Transfer Geodatabase Field Properties check box. Then, run the tool in order for the domains to be transferred to the output.
There are some refresh issues on the domains dialog in ArcGIS Pro 3.0 and earlier requiring users to restart the ArcGIS Pro UI to see the domains transferred. Refer to https://pro.arcgis.com/en/pro-app/latest/tool-reference/environment-settings/transfergdbattributeproperties.htm for more information.