Many know by now, but find the trade-off worth it for convenience or whatever they're getting in return. I mean, people are willingly giving up their DNA.
But, if it was the government receiving all of this data, they'd be in a panic. This has basis in current day fear-mongering about government power, as well as warnings about authoritarian governments from Orwell and beyond.
Not to say there's no reason to be concerned, but the casual mentions of 1984 are hilariously dated and ironic in 2024.
More substantively, it also reveals the naivete of those who wish to completely disempower their democratic governments. That is, someone will still retain the power when it's taken from the government. The only question is who and whether everyday people will have a voice in their own governance.
One look at corporate power and our deference there is a pretty big hint.