So, just an FYI, I bought Eufy cameras because I believed their marketing bullshit about being secure and end-to-end encrypted. About two months later they changed how they describe their security and quietly modified their privacy policy. Turns out they're not really end-to-end encrypted and it is possible to gain access to the streams sometimes.
My recommendation, after doing my research is not to buy anything that is able to be viewed remotely. Buy something that stores the video locally, in your home. If possible, buy and install wired cameras.
I'm just about to setup TP-link cameras connected to Frigate (NVR software) with a Coral TPU for offline object detection. This means I can block access to internet for the cameras and use a VPN home if I want to watch them.
Onvif camera (It's the standard. Any camera that supports onvif will be plug and play). Block the cameras' Mac addresses at your router so they can't get out directly. Install zoneminder on Linux. If you need remote access follow all the guides to securing a Linux server that has ports open to the Internet. (Ssl, tailscale etc.)
Blueiris for Windows is great but it's not open source.
I use a old phone with IP cam on it, and only allowed local network access connected to my home assistant.
I can view it remotely via home assistant cloud, which is E2EE from instance to phone.
I presume Raspberry Pi Camera is also a great solution. And also I dont put any camera in bedroom or bathroom, because there is no reasonably accessible entrance there.
The security issue you mentioned I think only affected when they handle access to the cameras. I think you can set up a VPN and then turn off remote access on the NVR, so it seems possible to avoid that issue.
That being said that's a lot of work for something they should have handled securely in the first place and doesn't give me much confidence about their security in general.