I don't own a "smart" speaker. I've never liked the idea of having an always-on cloud-connected microphone in my house. Like, it's just asking for trouble. I don't necessarily assign malicious intent here. It's just a recipe for disaster.
But if you made me choose between an Amazon or Meta "smart" speaker and a Huawei speaker, I'm choosing Huawei.
As for robot vacuums, I don't see a reason they need to have a microphone. I wouldn't want one that did. I think I'd also prefer they had a LIDAR rather than a camera too but I can see that cameras can do things that LIDAR can't.
Anyway, I find these deep distrust of the Chinese government to be very... selective, given what our own governments are doing and I'm sorry but our tech giants are out of control.