Earlier quoted context omitted.
Hopefully it's as open as macOS, or at least much, much closer to it than iOS. Otherwise the options for exploration are limited by Apple.
New opportunities for abuse do exist with Vision Pro. If you allowed free reign access to the sensors people could record the inside of your house/work, capture your face, fingerprints, retinal pattern etc. And again with Objective-C it's impossible to prevent private API usage unless you have some sort of App Store model which can inspect the binaries and prevent abuse. So it's ultimately going to be the same as iOS…
Yes, yes they could. That's not and shouldn't be Apple's problem. That's your workplace's problem to regulate how the device is used on-site, the government's problem to regulate how it can be used in public, your household's problem on how it can be used in private, etc.
The device will be inevitably jail-broken anyways, so a walled-garden isn't going to stop bad actors.
Not to mention, most of the things you mentioned can already be accomplished with less expensive and much more subtle devices, like a standard digital camera. And those device definitely don't try to prevent abuse. (Imagine if your camera refused to take a picture because it thought you didn't have permission!)