POV?

So I know most people consider the show to be told by Marvin in his POV? Meaning Marvin is narrating this story. But I wonder who you guys think would be telling the story other than Marvin.

For example, I thought to myself “Since Mendel has the last line in the show, what if it was from his POV and he’s recounting all that this family has been through. Other than Marvin he would be the one knowing every detail of their lives.”

I know we literally start the show with Marvin being the narrator but I like thinking about things like this, maybe I’m just crazy lol