We're in the Justice phase, yes.
I don't know about the phase numbering.
When Q started a new board and posted [2] Traitors vs. Patriots, I believed that signified Phase 2. Sequentially next, Justice would be phase 3.
But I could be wrong.
We all want to understand what 5:5 means and many ideas have been floated.
We also know that multiple meanings should always be considered as a possibility.