Does the “Create Layer from Selected Features” tool store cached data in the feature layer/map document?

[Bud]

Does the “Create Layer from Selected Features” tool store cached data in the feature layer/in the ArcGIS Pro project file?

Or does the layer still reference the underlying FC/table, despite the layer not having a visible definition query?

Related: How is the WHERE clause stored in a 'Create Layer from Selected Features' layer?

[ChristopherCounsell · Accepted solution]

It's not cached. It points to the same data.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/selection-layers.htm

It is useful as a temporary working dataset. Better long-term solutions would be to copy the layer and apply a definition query.