Reviews of OEM Hyundai antifreeze

On our 2022 Hyundai Ioniq 5, the only sort of costly recommended service every 40,000 miles is the testing and replacement if necessary of the non-conductive coolant (for traction battery and integrated charging unit.). Costs vary by dealership but our cost was $200 for the fluid and $125 labor = $325.

There is still enough coolant in your pictures, no need to top off

I had (have) the same concern about reliability. So far, there are no issues other than a coolant flush and replacement.