Unifi for landed houses will employ Fiber to the Home (FTTH) technology, so TM will lay and pull a fiber optic cable to your house.
Unifi for condo / apartment buildings will be using VDSL2 technology and this will ride on the existing copper line that your apartment/condo/building has.

This is also in the Unifi brochure, pasted conveniently on the 1st page of this topic.