From the links:
it appears that in Luxembourg and Germany, there's a category of 'shortage jobs' that goes in favor of non-EU people to have not so high salary in order to obtain EU Blue Card. That is, they could earn less than the minimum salary requirement for a Blue Card, and can still apply for and get one. However, I don't see the same in the corresponding links for France, Belgium or Switzerland (which doesn't issue a Blue Card but does give selected permanent residence and work permit etc.)
My question is: even if it's not mentioned, is there a category of 'shortage jobs' for France, Belgium and Switzerland that'd go in favor of non-EU people applying for positions in those 'shortage areas'?