All polls have shown the same consistent lowering approvals, but this is the first one that shows and proves that the main group where this happened was between Democratic voters, more than Independents.
Republicans already have a consensus where they practically all disapprove Biden. But losing more approval with Democrats than Independents shows that it’s the American Left that got more dissatisfied with Biden in the past month. If it were the Center, you would see larger fall with Independents.
Would be interesting the same comparison by age to really confirm that Biden lost more approval with younger voters, in order to prove that this shift happened because of the government position on Israel/Palestine.