Episode 4 was really good, for the most part. Boba’s motivations make a lot more sense now. I only have 3 complaints:
Why would he think his armor was in the sarlaac? You crawled out of the sarlaac with your armor on, dumbass!
Having spice be the central item of the plot makes this all feel too much like Dune, and the last thing SW needs is more similarities to Dune.
As someone above said, we never learned how Boba found out who Cobb Vanth was and that he had his armor. Oh well. I guess that’s a small hole in the grand scheme of things.
Regarding number 3, I think there’s one more flashback at the beginning of chapter 5 showing him going across the Dune Sea talking to Tusken Raiders, maybe some Jawas, and eventually coming across Cobb Vanth and the Mandalorian trying to kill that Krayt Dragon. He flys over to investigate and that’s when he sees his armor.
Then the next scene should be of him talking to Cobb Vanth and explaining that the armor is his. He tells him a Mandalorian took it from him. Then Boba Fett tracks the Razor Crest to that planet That should be the end of the flashbacks, because we already know what happens in the Mandalorian season 2.
There is no plot hole, yet, at least. They could just assume everyone knows what happens, but I can see Fett remembering Cobb Vanth and offer him a deal to help him, and maybe get the Mandalorian to help him as well.