Unfortunately there doesn’t seem to be a way to link to a filtered set of reviews on the play store, but If you go to the store, find the app, go to the reviews and filter by 1 star you’ll see them. Some of them just don’t understand how the app works, as you say, but there are a number that are harder to ignore. The thing ism if it is acting as a pseudo VPN, it could easily leak when the OS suspends it (for power saving, switching network modes or the like). Honestly, I haven’t tested it, it doesn’t do what I need (I’m on another VPN a lot of the time), and I wouldn’t trust it very far myself, but if it does what you need, that’s what matters.
I personally observe with my own eyes many many times where Android turns off Adguard’s VPN for a split second when doing various Google things like receiving messages in Google Messages.
I haven’t been able to pinpoint it but my observation is that the disconnect/reconnect happens when a connection is trying to be made (ex. RCS message incoming), and I suspect Android is dropping the VPN to make its own connection. Sounds paranoid, but I’ve been carefully watching it happen for a long while.
Same with sensors, camera and microphone. Core system services will always have the privilege to override your permissions.
Developer Options allow you to fully(?) disable these, but even then, your dialer app for example will have perfect access to your microphone.
Don’t get me wrong, I’d rather have it be like that in case of an emergency, but it does make you think.
