Yes you can, supports up to 80kg load (including the roof rack).
Currently, only Yakima have a compatible rack.
Yakima - Roof Racks and Accessories To Suit Most ModelsYakima is the world's leading brand of car racks, including roof racks, bike racks, towball racks, and many more for all of life's adventures. Yakima rack systems are designed with advanced aerodynamics and a seamless look. Carry your gear safely, quietly and in style!www.yakima.eu
Roof bars & Roof racks | Hyundai Ioniq 5 (2021 on)
Find roof bars and roof racks to fit your Hyundai Ioniq 5 (2021 onwards). We stock a range of Roof bar types from top brands including Thule
I'll be getting these