If the buyer chooses a fixed interest rate, the upward and downward adjustment of LPR has nothing to do with the subsequent repayment interest. If it is a floating interest rate, the reduction of LPR will lead to a decrease in repayment interest.
The new policy is only for first-time buyers, and every interest rate change will be effectively implemented next month after LPR adjustment. After the introduction of the new policy after 2020, the loan to buy a house is not as free as before. There is no fixed interest rate, but floating interest rates. Therefore, the adjustment of LPR is closely related to the loan interest rate. Friends who have already bought a house should always pay attention to the monthly changes.