It's currently being deployed across the european union[1], I think the 2026 target they gave it's a tad too unrealistic, wouldn't be surprised if we get major coverage not until 2030.
That target is for the new and improved version where you can use NFC to self-identify on the web. The old version (with a smart card inside, so only offline auth) was rolled out in Germany in 2010.
Can't remember if they ever released the 1st version either in Italy or France, a few days ago my septuagenarian mum got the NFC enabled one in Italy.
The iOS app is surprisingly decent. She could still request the old, paper-only id but this one could be also used to pay for local ordinances straight from her phone, and it's less cumbersome than the SPID-based[1] authentication.