I don't think anyone has noticed or mentioned this before.
The iMac US spec sheet now says
While International version says
The iMac US spec sheet now says
- Up to two external displays with up to 6K resolution at 60Hz or one external display with up to 8K resolution at 60Hz https://www.apple.com/imac/specs/
While International version says
- Up to two external displays with up to 6K resolution at 60Hz or one external display with up to 8K resolution at 120Hz https://www.apple.com/uk/imac/specs/