Instagram moved some things around with a three-dot menu of a post and reels.
As shown above, you can now easily share posts and reels with QR codes which can also be saved on your device. This feature is quite similar to Instagram profile sharing with QR codes.
In the latest version, Instagram is also testing a redesigned approach to QR code sharing as well.
As shown above, now Instagram has a dedicated button for QR code sharing and a new intuitive UI as well.