Baggage claim on an international flight is always after immigration.
You can talk to your airline if they can transfer over the baggage to the other airline (in some cases this is possible) but if that doesn’t work out and if you must take your baggage and check it yourself then it is always going to be after immigration.
And in that case you’re definitely entering Schengen area and will require a visa if your passport doesn’t have Schengen visa exemptions.
Since you appear to be a savvy traveler who knows what he is asking, it is safe to assume that you know your immigration requirements. Hence there is no need for the standard TSE project visa & boarding fear.