I think sincock may be the closest to what's happening CURRENTLY in the NL. In the past couple of days, we've been to cafes and restaurants in The Hague city center. At the first cafe, they checked our QR codes and asked our DOB (to verify our identity); at an Italian restaurant, we opened the code, the server looked at them from about 5 feet away - and without scanning them - said, "That's okay!" This morning, we were not even asked when we went for coffee. So it's very inconsistent. Unfortunately, it seems you do have to have "something" in case they do check. I cannot add any context to the use of a CDC vaccination card option as we, and everyone I know here, have the Dutch QR code.
Yet, all of this may change TODAY. A few days ago, the NL had more than 16,000 new cases reported in one day. That is the MOST cases ever reported in ONE DAY... EVER! These numbers are worse than the pre-vaccine days (and worse than the numbers that created the lockdowns we were in). TODAY, the government is announcing NEW restrictions. Another "lockdown" has been rumored, but the word on the streets is that will not happen - YET!
It appears they are going to minimize restaurant hours of operation again and add more restrictions back to movie theaters, sporting events, etc. Yet, no return to MASKS to be required everywhere or restrictions for ENTRY by non-EU citizens. Of course, if the numbers don't reverse, all that could change.
No one is sure what's driving these high numbers but there are lots of theories. Anyone over 60 was required to get Astra Zeneca back in the early days of inoculation (That's what I have). Documentation in the NL has been presented that over time AZ loses its efficacy faster than other vaccinations. As a result, the NL government is expediting the over-60 third booster shot. These next shots will not be AZ because it's no longer being distributed in the NL. The Dutch Times reported that 57% of the people reporting new COVID infections were NOT vaccinated, so that presents a large amount of "breakthrough cases" which seem to be among the older populace.
So, things may change here - and soon. In 2020, our "Winter" lockdown started about December 13 - no one wants a repeat of another Christmas season in lockdown. Yet, the government is very adamant about "tourism in 2020." So they may announce more dramatic steps this afternoon ----> if these latest restrictions do not slow the growth of the record-setting numbers.