Mixing Red and Gold Coolant Bad?

So my Kia Rio 2023 was low on coolant in the reservoir, so I decided to do the free top off at take 5. They said it was for Asian models, so I didn't question it. After doing some research, it's starting to seem like I made a huge mistake since the Kia took the red coolant from the manufacturer and not this gold coolant they added. How bad is it mixing these two types of coolant, and should I flush the system?