Just finished watching this through and liked it a lot more than the series itself. The shuffling of all the Mando stuff really does make it feel like a proper Mando series 3, albeit with more Fett this time around - but the new framing makes it feel like he’s guesting in Mando’s show, not the other way around.
I liked the Fett Tusken stuff the best of that series originally but wholeheartedly agree it just isn’t needed here. There’s just enough remaining for everything to make sense. And I didn’t miss any of the other cut elements either.
The Luke Grogu stuff feels like a perfect coda and lead into what comes next too.