"(UK) Royal Mail’s Stamps are finally entering the digital world, with Printed Codes that can be used to track letters or linked to videos. Collectors, traditionalists and royalists are not amused"

https://www.theguardian.com/society/2022/jul/04/eventually-it-will-just-be-a-barcode-wont-it-why-britains-new-stamps-are-causing-outrage-and-upset