No, annotations cannot be created or edited in ArcGIS Pro. Furthermore, the Convert Annotation to Text function in ArcMap is not currently available in ArcGIS Pro.
Labels must be converted to geodatabase annotations using ArcMap and can only be displayed/viewed using ArcGIS Pro. When converting labels to annotations in ArcMap, ensure the annotations are saved to a database, not to a map document.
In some cases, when attempting to edit an annotation layer, the message Relationship query tables cannot be edited is displayed in the Editing Status dialog box.
Geodatabase annotation layers can be displayed in ArcGIS Pro, but is it not possible to create new annotations from these layers or from labels. Annotations are not editable in ArcGIS Pro, as the individual features of the labels are not movable. Linking the annotation to a feature class (in ArcMap) allows the annotation to be moved or rescaled in ArcGIS Pro with the feature, but the annotation cannot be edited, moved within, or resized independently from its feature.
翻译：
不，不能在ArcGIS Pro中创建或编辑注记。此外，ArcMap中的“将注记转换为文本”功能目前在ArcGIS Pro中不可用。
标签必须使用ArcMap转换为地理数据库注记，并且只能使用ArcGIS Pro显示/查看。在ArcMap中将标签转换为注记时，请确保将注记保存到数据库中，而不是保存到地图文档中。
在某些情况下，尝试编辑批注层时，无法编辑消息关系查询表将显示在“编辑状态”对话框中。
地理数据库注记图层可以在ArcGIS Pro中显示，但不能从这些图层或标签创建新注记。在ArcGIS Pro中，注记不可编辑，因为标签的各个特征不可移动。将注记链接到要素类（在ArcMap中）可以在ArcGIS Pro中使用该要素移动或重新缩放注记，但不能独立于其要素编辑、移动注记或调整注记的大小。