Ah, I mixed the two. The fact that English is non-native language for me, didn't help, either. What is (e-)residency good for, then? For anyone Russian reading

Ah, I mixed the two. The fact that English is non-native language for me, didn't help, either. What is (e-)residency good for, then? For anyone Russian reading this: should residency be прописка? It actually was canceled in favor of registration. So, I guess, residency is registration?