Like I said in a reply to the sibling comment, that’s a regional quirk (taste). Most of the beef exported from NZ to the US goes to meat products like burgers.

Australia is more interesting because it’s 50% grass finished but I could never find a source on how much of that was exported to SEA or US and what products it went to.

Another country that predominantly grass finishes is Brazil but they export mostly to China. Again I couldn’t find a source on how much of exports to the US go to meat products (we source a lot of our hamburger meat and pet food from random countries). I remember in all three cases very little is exported to the EU.

Have you a source?

In NZ the cattle stand around in paddocks in all weather's with no shelter, but how do you know they are not fed supplementary feed?

Dairy herds almost all are