is it possible to change the storage location on a per-user basis?

Based on the documentation, it appears that images are stored in

<upload-location>/<user-id>/<year>/<month>/...

<upload-location>/<user-id>/<year>/<month>/...

I see it is possible to configure <year> onwards, but is it possible to alter the part before this? For example, it might be useful to have

<upload-location>/<username>/...

<upload-location>/<username>/...

is it possible to change the storage location on a per-user basis? - Immich