can 1gig Fiber internet use home's existing coaxial infrastructure

We have gig fiber internet that comes in through our garage. However this means all of our devices have to use wifi to connect to the internet. Almost every room in the house has a coaxial outlet, which I know should be able to carry 1 gig. Is there some sort of setup that can be done/device that can allow us to use the coaxial infrastructure to get hardwire internet throughout the house?