The attributes pane has functionality that lets us select invalid rows:
Find and correct invalid values
To find and correct invalid attribute values, right-click the layer in the selection view and click Select Only Invalid Objects. This command is available with layers for which a data rule exists including attribute rules and other geodatabase behaviors such as attribute domains.

https://community.esri.com/t5/arcgis-pro-ideas/prevent-non-domain-values-from-being-used-across/idc-...
That functionality is useful, especially for selecting rows where the values don't match their domains.
Idea:
Currently, that functionality is only available in the attributes pane, not the attributes window. Could that functionality also be added to the attributes window? That would help when it comes to workflows that are based on the attributes window, not the attributes pane.