Pretty sure George didn’t give a shit about him either, hence how he died on ROTJ. I must say, with as much Boba Fett fanboy-ism going on after Mando, I like his silly death scene more and more - we shouldn’t be thinking too much of the bad guys, focus on the heroes, dammit!
Having some cliché grand duel for Boba Fett’s death would be boring and stupid in my opinion. I think they way his death was done in ROTJ was great actually. It is kind of a homage to how some of the famous gunslingers of the old west died (e.g., Wild Bill was shot in the back, etc.). It kinda points to the fact that, in the end, no matter how good and skilled your are, eventually your luck will run out and one bad luck moment and you are gone in this kind of business.