Personally I think you will hate 1 if you don't play it first. But you probably will already, given that you played Elden Ring :D

I played in 2, 3, 1 order and especially controls, hitboxes and animation felt really off to me. Once you get used to everything, you will notice that many bosses are extremely easy, because you already fought harder versions of them in the later titles. Also the riddles are nightmares. And you don't need to solve them for some optional area, the hardest one is how to get into the DLC. Without a guide, it is pretty unlikely you will ever find it