2021 Kona EV preferred trim infotainment update (Canada)

Here's the detail on 2021 Kona Preferred Infotainment- 7 inch screen without navigation.
First of all I haven't seen any update for non-nav system on Hyundai update website.
Secondly - Is NAV system update is compatible with non-nav system ?
Finally - If it's not possible to update it from the website at home and somebody has managed to get an update installed from their dealer, what are the differences ?
Thank you in advance