That number seems 20X higher than what I would have expected. Either the bar to be a nomad is meaninglessly low (e.g., works occasionally from local coffee shop) or I've grown out of touch.
https://www.theguardian.com/technology/2019/may/11/digital-n...
https://trends.google.com/trends/explore?date=today%205-y&q=...
About 3% of the US workforce seems way high not to be including a bunch of stuff one wouldn't expect.