I have a 2019 Niro EV EX Premium Release Edition
Last year, KIA sent me an email notifying me that a map/infotainment update was available; it cost nearly $200 at the time, including $25 for the SD card if you chose that option.
I got no email this year, but I went back to the same site, and an update was available. This time it was free to download, or $25 if you want a new SD card. I chose the latter just because it can be a hassle to get the download to work and set up properly.