These agreements are literally aged, some (probably all) predating the Schengen arrangement. ETIAS actually has nothing to complete with it, and worth noting that the website you link is not really an "Formal" Web-site, it is a business Web-site, wanting to "assistance" you using
Unexpected emergency visas are short-stay visas but they aren't Schengen visas. Your visa only makes it possible for you travel into the Netherlands and take a look at the Netherlands.
Moreover, you will also need to post proof of work status, As outlined by your condition, as follows:
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