Any of the camera doorbells or security systems that ship all the footage to their own cloud. It’s unsettling to have devices with cameras semi controlled by a third party like that.
I'm lazy but opted for POE cameras in a system that I just hooked up because of this. It took a couple days of crawling around the attic and drilling holes in the wall, but now I don't have to worry about Amazon or Google selling/giving my personal camera feeds to whomever requests it/cuts them a check.
Yeah, I like having cameras but don't want that video being sent elsewhere. I ended up getting Tapo cams which are cheap cloud cameras but they also have RTSP streams and local username / password settings. That means I can send the footage to a locally hosted NVR and lock the cameras behind a parental option in my router that blocks all external in and out communication to them.