Customer reviews are largely a waste of time. They are almost always from people that are expressing how they FEEL about something as opposed to people expressing factual information.I'm not stating opinions. I'm stating facts.
In the amazon link you provided, the very first reviews listed on that page are all from people who analyzed the network traffic coming from the cameras. All reporting the same thing: UDP payloads going to China and other countries, not just to AWS as advertised. Did you not scroll down to the reviews before purchasing the camera because it is huge and obvious right there? Further, you can look at the reddit page for Wyze cameras and the Wyze company's own forums which all have many people reporting the same thing after analyzing network traffic. The camera will even change it's own MAC address to acquire a new unrestricted DHCP address if it needs to. This is also where where Wyze representatives officially confirm their devices are sending data to a multitude of different countries because it was less expensive than building their own secure servers. They've been saying they plan to change that for over a year and have no done so. Oh, and they also continue to record and stream this data even when you turn the camera off through the app!
This kind of thing is why it's critically important to do your homework on products like this. And it's important to not ignore information you don't like because the price is better. A well made device from a reputable manufacturer with testing and reviews indicating it isn't a gaping security hole does not cost $25. Because it's not possible to develop, produce, and operate the product and associated services for that price without sacrifice. That sacrifice is your family's personal privacy.
If you had researched these in detail, you would understand that the activity to the "foreign networks" is for DNS and UPNP traffic which is all related to how you reach the camera from outside of your network. Is has NOTHING to do with any data being sent to those networks other than a "camera available here" sort of query for UPNP.
UPNP itself has some issues, and one needs to be careful with it. However, the cameras do have a security control on them for authentication. So, again... Cite the facts or back off since nothing you have stated is an actual fact or a link to actual facts.