And yes, of course all the people murdered by the Germans after the summer of 1944, the Hungarian Jews for instance, all the victims of the death marches, or of the underground factories, would survive, therefore the Holocaust would be somewhat less bloody.
Jews who had avoided being put in camps before '44 might survive, but as the front approaches Germans would be murdering or "evacuating" the remaining prisoners as otl, IMO. Otoh people in hiding should survive in greater numbers.
If Allies and Soviets are moving faster then for example Warsaw uprising is likely to succeed (militarily, politically Polish aims were on level of naivety unusual even for Poles), as Stalin has not time to wait out until it burns out, so here alone you have more or less 200,000 Poles surviving the war.