Regarding Germany's official Corona tracing app (not the of this post), by the end of last year there was a discussion about collecting movement data of the app users [0]. The discussion was part of the "German Infection Protection Act", resulted in public protests and in the end got declined. I wonder what the state of this is in other countries?

[0] https://www.sciencemediacenter.de/alle-angebote/rapid-reacti...