Of cause they will have permission. It's in the TOS and EULA if you don't want to have them doing it you will have to use something else.
This is 100% a core feature and will break windows if you disable it. You know, until Europe says we have to let people disable it then we will only allow European versions disable it.
Unless you are an enterprise than you can flip these 2 registry keys and that group policy to disable it, but we will revert that setting every time we update the software, which will be about every month.
You mean like "client side scanning of all media you send via any (chat) app before encryption and sending all media that might trigger $algorithm to the police"? Yes, it happens only if you consented to it, but good luck using those apps without giving consent...