@ieure can't you do an opaque app specific deep link by using a URL shortener and pointing it to say zoom://whatever and open a zoom meeting? Just as an example
Also I contend that many many people do not have the digital literacy to understand even the slightest bit of what a plaintext URL is telling them.
@darius @ieure hmm I think there are code paths available via QR that aren't available to a bitly redirect, like maybe vcard?
Hmmm, there's lots of interesting stuff to do here https://github.com/zxing/zxing/wiki/Barcode-Contents I like "join my wifi network"