Exactly this last week (and for the past months btw). Showers are open, reservations at the front desk (the desk next to the showers department is closed). There's one food and drinks counter open for breakfast, lunch/dinner meals and all sorts of drinks, coffee and thee is self-service.
Keep an eye on the waiting times for immigration though, you'll have to pass immigration twice given your pure Schengen itinerary, whether your connecting or departing from AMS. Mainly on working days before 10am there can be peak moments at immigration, Privium lanes closed, self-service closed and only 2 manned lanes open. Could take anytime between a minute and 20 minutes, the latter mostly for NS > S, though from what I've seen in the past weeks I can imagine that it is much quieter now passengers from India are banned.