This finale and now in retrospect, this show, was a complete, and utter, mess.
Having seen the last episode just now, I have to say I agree. I enjoyed all The Mandalorian parts, but the rest seems pointless. The Luke episode even more so. He did nothing but sit around. In 1983 I found Jedi Luke boring. 40 years later, I still do.
As for Fett himself, the best of this Book was last year’s teaser.
There were moments where I found the last battle interesting, but it was too long and at times unfocused. I liked all the Rancor parts. That worked well I thought.