I still can not use the Ausweisapp2 with my german ID card, due to NFC connection getting lost (roughly spoken, maybe the real issue is something different?).
There were some posts here in 2021, and an related issue was created on bug tracker, but later closed sadly, and since then no more here.
Does it work for people?
It does not for me at least.
@Shakatus: your Screenshot shows the result of the “Check device and card” test. But that is of no relevance here. I get the same result on that test. The error pops up when reading the data out of the card (right after entering the PIN).