These common people were easily influenced by these small welfare policies and food distribution measures. If the Soviet regime had no proper response, the provisional government's advantages would grow bigger and bigger.
At this time, Germany obviously couldn't offer the same generous conditions as the Allies. Germans were severely depleted by the war and naturally couldn't afford to use huge amounts of funds and resources to support Russia.
This indirectly strengthened the Russians' confidence in continuing the war since there is financial and material support from Britain and France, while Russia can just maintain a defensive posture on the front line.
Since the Soviet regime couldn't offer the same welfare benefits as the provisional government, the public's sentiment has visibly shifted in favor of the provisional government.