Comment by axioms_End

One issue : Wansee takes place in 1942, that is in the middle of the war. Until now, most camps are "just" concentration (death by labour) camps, and Jews are mostly in the ghettos. Only after Wansee you have start of mass transports to death camps - most people who died in Auschwitz were never inmates there - they were brought from other countries, sorted on ramp and send to death. Not to mention - at that moment camps were already full of people (Auschwitz was started for Poles and Soviet POV). So no, they didn't "stop" with gas chambers - they have inmates in camps and Jews in ghettos (all having to work in one way or the other), and the idea of Final Solution wasn't complete until 1942 (and took place until 1944).