The privacy properties. With OpenID connect you have traceability - for example if it was used for a vaccine passport, and said passport was required to enter s

The privacy properties. With OpenID connect you have traceability - for example if it was used for a vaccine passport, and said passport was required to enter shops, bars, sports venues.. then it would be very easy for the companies implementing the "point of check" devices to track your movements. With IDE mix that isn't possible.