Probably if I stay in this relationship, east-ish ~30km from the Melbourne city, ~1mil homes... ~900k interest if standard amortization loan with ~6% interest... would pay heaps more in the first ~10 years to smash that interest down to say ~400k... paying ~5.5k per month standard repayments, +3k extra to smash the interest down. Will probably not go with such a specific loan type but you get the gist.
Country not sure, trying not to consider it too hard as I know how much less I could spend haha