I've been working in NL on and off for the past few weeks and was in Amsterdam a couple days ago.

Most of the country looks just like it did a year ago except that restaurants have been allowed to take over a lot of public space for terraces and tables inside are spread a lot farther out. AFAIK, bars are not allowed to serve anyone not seated at a table. Masks are required on public transit vehicles and compliance is essentially 100%, but they're not required anywhere else and literally no one wears them. Even at its worst in Noord-Brabant, C19 really didn't hit the Netherlands that hard, and their contact-tracing seems to be pretty functional.

Amsterdam is virtually unrecognizable--in a good way. I rode a rental bike (OV-fiets) through De Wallen last week and was blown away at the relative lack of crowds. I was able to ride virtually unimpeded down streets that are often hard to walk down. I got a seat on the metro at 6pm on a workday. I still had to ask people to get off the bike path in English, Spanish, Polish, and Italian though

If you like beer, Oedipus in Amsterdam is worth a visit, as are 't Uiltje and Jopen in Haarlem.

There are a couple other threads in this forum with a bunch of good restaurant recommendations.