Got this as present and couldn't resist trying it, sticked with it for 1,5 years now, but have blocked telemetry with pihole.
However API has changed and sometimes you need to disable the firewall for things to work.
Therefore I am currently planning n on getting something like respeaker.
Tried to opt-out, followed the instructions and no option there... Updated the app, still no opt-out available...
Another reason to switch to some offline home brewed smart speaker.
Therefore I am currently planning n on getting something like respeaker.