I mentioned Germany because I've seen Luxembourg-style smartcard authentication as one of posdibilities for submitting german VAT returns online when I cared ab

I mentioned Germany because I've seen Luxembourg-style smartcard authentication as one of posdibilities for submitting german VAT returns online when I cared about such things few years ago and the application involved in that looked mostly the same as Luxembourgh and Belgian one (Oracle Forms, similar UI...) Edit: otherwise you confirm my suspicion that essentially nobody uses the chip on ID cards outside of Estonia (Slovakia is mentioned due to their recent massive rollout of chip IDs inspired by Estonia, but I assume that actual usefullnes is nil)