Thanks! And yes it was fast, maybe because my green card process was sent on March 2021 and then I sent my N400 in March 2022. I actually did not find another forum for N400 2022 and I just realized this is April 2022. Mine was sent in March 3rd, 2022, received interview letter on 3/29/2022 and my interview was on 4/26/2022.