The whole concept of "opening" the Star Wars TV universe with The Mandalorian is in itself an odd choice. One would think that starting with Boba Fett or Ahsoka would have made more sense because at least some of the audience would be quite excited to see them and the rest of the audience would get to know them.

Instead we had all new characters in S1 of Mandalorian. Maybe the purpose was to have all the audience on the same level in having to learn all the backstory slowly. But as you point out, that then makes less sense as we move into a S2 chock full of guests with complex back stories, whose stories are left hanging. And as many have complained, we get a rather truncated story with Boba Fett since part of his show is given over to what Din and Grogu and Luke have been doing without really getting that deep into that part of the story either.

I also agree that I don't see why Boba Fett is that interested in staying put on that part of Tatooine. On the one hand, I get the idea that he is "reborn" out of the Sarlacc, a near death experience and being at the mercy at first of the Tuskens starts building in him a need for connection, community and greater purpose that he never had. But on the other it does seem to come out of nowhere and his character seems awfully zen all of a sudden. Plus all the references to these different Mandalorians must be pretty confusing to those without any background into their history and sects.