There were two big differences between then and now.
The Russians knew two months in advance that the Germans were coming thanks to Enigma decrypts.
This allowed the Russians to dig in, in depth.
This time, the offensive forces knew 2 months in advance what they were planning to do, with no lapse in security.
The Russians definitely haven't dug in in depth and have no strategic reserve
The battle of Kursk lasted around a week with no perceived forward movement.
This one has captured approx 1000sqkm.
So apart from that they are quite similar!
