In August 2025 I flew into Berlin and the machines were being trialled, I presume.... signs up that all non-EU passport holders had to first use the kiosk machines before queuing for the immigration/passport control desks. Passport was scanned and IIRC you had to also place your fingers on the screens for scanning. This added maybe a minute to the overall queueing process to get into Germany. In November I visited Berlin again and this time, the machines were not in use at all, and it was straight to the queue for the desks.
The weekbefore Christmas, my younger daughter flew to Prague with her best friend and it took tyhem about 3 hours to queue to get though the machines for EES then passport control, so long that the taxi booked to meet them drove off and left them to make their own way into the centre, despite (at the time) it being well documented that there were lengthy queues for immigration at the airport.
Personally, I sadly miss the automatic face recognition thing that was operating at St Pancras for Eurostar in late 2024. I recall that I Just walked up to the special lane, the machine scanned my face and automatically did the UK border side of things, and I wen straight to the bag scanner. There was an app that I downlaoded for this. For whatever reason, shortly afterwards the entire face recognition system was canned and the next time I went it was back to the lengthy queues. Such is progress........