I noticed we got this new option in the latest Edge insider Version 81.0.387.0 (Official build) canary (64-bit)
the ability to change the location and languages for news content on the new tab page NTP
as it was planned for January
There are cases where Edge wouldn't be able to detect the actual location so this should take care of it.
@HotCakeX I live in Czech. I changed content to English by mistake and can't return back, because Czech is missing in the list. How can I change it back?