Pay rates at US legacy airlines have bumped up quite a bit and these would obviously be the first choice for someone with a US passport. American Captains are leaving airlines in the Middle East to go home to the RHS now that the pay gap is small enough to make living at home worthwhile.
For an older pilot with Boeing wide body time who was laid off from a legacy airline during COVID and needs to fly for a few more years it might be a good deal. However it would be a hell of a commute and you’d be a zombie for all but a few days each month with the Australia to US time zone difference on top of the circadian disruption of long haul flying.
It might be an opportunity for a young bloke wanting to emigrate and get his foot in the door. Do a few years and try to change to a more permanent status while looking for something better.