I think so, and it seems this is very recent; I found that: https://www.reuters.com/article/us-health-coronavirus-europe-tech/germany-flips-on-smartphone-contac

I think so, and it seems this is very recent; I found that: https://www.reuters.com/article/us-health-coronavirus-europe-tech/germany-flips-on-smartphone-contact-tracing-backs-apple-and-google-idUSKCN22807J https://www.reuters.com/article/us-health-coronavirus-europe... I hope France will follow.