Since YouTube has deprecated API V2, I cannot find a way to get the location or the region code of a channel. I used to use the value found on V2 API e.g GB.
The official documents suggest that this feature will NOT be moved to V3. https://developers.google.com/youtube/v3/guides/implementation/deprecated#Channel_Location
Has anyone discovered a successful workaround?
Channels don't have a location anymore, your best bet is to analyze uploaded videos' location and estimate.