Same in the UK, I find it kind of funny that some North American transport planners are starting to put roundabouts everywhere at the same time as they're being ripped out in London.

They're still pretty much the default junction outside of towns and cities because they do work well but large roundabouts are no fun at all to cycle round

The type of roundabout being installed in America is generally one or two lanes wide, not some of the multilane monsters prevalent in the UK though.