Just to clarify - Dutch immigration do not check anyone's COVID validity. There are many airlines insisting passengers fill out Health Declaration Forms. By all means fill them out but there is no-one in Amsterdam collecting these.
I flew to Madrid last week and was surprised to see lots of medical looking people in hazmat suits asking to see QR codes to enter the country. None of that is happening in Amsterdam.
And I agree - I do hope they lift the testing requirement soon.