Offset mortgages

I’m in a situation where we need to buy larger home. I will need to sell my current home (mortgage free) and take out a loan from the bank to buyer the house.

I have being offered a offset mortgage. Where we can use our saving or savings of family members to cancel out the interest portion of the loan. It is possible to cancel out 100% of the interest of the loan and just pay the capital amount borrowed. Would this be considered shariah compliant?

May Allah bless you.
Even if you can keep the level of savings to a point where you can offset the interest and reduce it to zero, scholars will still see it as impermissible to enter into a contract where the agreement is based on repaying the loan with interest.

Kind regards