I was not sure why France would agree with the “joined” purchase of the Rembrandts, and this article helped me to understand the transaction and its “political (personal) advantages”: here

Maybe the “non-monopolize” act is a positive way for the pieces to be exposed and easier accessibility, however, I don’t see the difference between that to just lending it.

rembrandt_portrait_femme-db075-3-26eb3 rembrandt_portrait-6f881-3-f0db1