And it continues..
device id, computer and connection information
Optionally also your voice to Amazon.
It was sharing it with multiple companies including Amazon, Google and many other companies not completely mentioned in their policy. Facebook and Twitter for marketing.
So anyone with access to their cloud can get all these info and also open the door.
All information stored with US cloud providers.
Conclusion is that I haven't seen one product which you could buy anonymously and use without any public cloud or without sharing your location/address.
Not a single company, including few based in EU, offer option to host own private cloud for communication with smart lock or completely offline solution.
A Mastodon instance for Luxembourg and beyond.