If you got the house in the past without knowing, you shouldn’t sell the house as this would suffer loss and you will still pay the interest remaining. If they will keep on increasing the rate of interest due to inflation prices, you should sell. But if the final price is set and whether you will sell or not, they will still charge the same amount, continue paying the installments because the harm has been already done.

In the past I bought a house with interest. Now I have decided to sell it, but then I will have to rent and that is more expensive than a mortage with interest.