https://uk.pcmag.com/macos/138058/not-just-iphone-how-to-use...
I've had a few instances on Windows 11 and surrounding software where ctrl-C as well as the context menu entry for 'Copy' were greyed out for this reason when skimming through logfiles, presumably because there was something about the line that triggered the MS "that's a password!" regex; stuuuupid stuff.
It's honestly annoying as it frequently interferes with dragging images out of safari, except on those occasions when I do want the text when it's super useful. I think the iOS interface just tells you there's text in an image or photo and gives you the option to copy it rather than cursor based selection you get on Mac.
[edit: from other comments it sounds like windows can do this but it's not always present, and not present in all circumstances, which makes me wonder how many cases in cocoa/uikit/swiftui it does not work]
If your concern is "apple is harvesting my data" then no. All of apple's various analysis systems ("AI") are entirely local. This does mean you get a bunch of duplicated work as every device redoes the same analysis but on the other hand it saves you from "how do we defend against a compromised network".
Even if that were true (I couldn't say, and I don't think anyone who doesn't have access to Apple source code and production systems could either) that wouldn't preclude Apple harvesting the results of said AI analysis.
In fact, doing the analysis on users' devices would represent a shift of that processing from cloud to edge, representing a significant savings for Apple or anyone else in a similar position.
The use cases we're talking about also don't work on a cloud based analysis, as you can't have text selection block on network uploads (generally slower than downloads), and it would require uploading every image you open to apple which would presumably be a lot of traffic, and an obvious privacy nightmare. It would also break for users who turn on the e2ee everything mode for iCloud.