[jabbany]

No. In this example your IP is shared with a third party "Facebook" simply because of the embedded QR code to a social page hosted by them. This is something very different from, say, the website of the restaurant you downloaded the menu from knowing your IP.

The privacy implication is very different. If you enable link previews in a messaging app, you consented to any potential site getting your IP. If the restaurant adds a tracker on their page, they've consented to the 3rd party tracking from their end. But with the QR auto-loaded by the OS, neither you nor the first part have explicitly consented to the additional information being shared. There is strictly more information being shared.

> This isn't any different from someone sending me a link to the menu at their website and them seeing my IP hit the preview there

Again this is an inaccurate comparison. The closer analogy would be someone sending a link to a website and somehow your IP is exposed not only to the website that was shared, but also to every other website that the shared website links to.