"With Editor" but status date changed.

I submitted a manuscript on 13 Nov to an Elsevier journal. The status changed from from "Submitted to Journal" to "With Editor on 14 Nov. On 20 Nov, the status date changed, but the status remained "With Editor". Since then the manuscript status has been same. Did something happen here? I'm wondering if this means that the editor is looking for reviewers or whether an initial screening is being conducted. Really appreciate some advice and clarification on this. Thank you!