If you are an EU citizen (or a citizen of one of the other Schengen Area countries) then yes, you have freedom of movement and can live and work anywhere in the

If you are an EU citizen (or a citizen of one of the other Schengen Area countries) then yes, you have freedom of movement and can live and work anywhere in the area without a visa. But the article isn't talking about being an EU Citizen. It's talking about having to count how many days have been spent in the Schengen Area by a third-country national. Citizens of certain other countries (e.g. the USA or UK) can enter the Schengen Area visa-free for tourism or limited work-related activities (for up to 90 days in a 180 day period), but are not allowed to just do whatever work they want to. Note that the comment I replied to was talking about non-EU Citizens.