Yeah, Middleton's comeback is good news for the Bucks, although it's worth noting that they're performing pretty well even without him, given that they're currently in 2nd place in the Eastern Conference. As for the upcoming game against the Lakers, it should probably be an easy win for the Bucks. Nevertheless, I would prefer to see the Lakers win because by doing so, the Lakers would prove that they aren't a hopeless team and can still beat tough opponents.
I saw it too that he will return against the Lakers and that would be a huge challenge for them seriously. If they can somehow find a way to win, then we can say that there are really hopes for them to compete in the NBA playoffs because this one is a huge wave, and to survive it, they really need the plan to stop Giannis and Middleton using the best players they have right now.
As for the Jazz, they aren't really doing good and they are about to jeopardize their chance to be in the NBA playoffs this season. Imagine how they failed to maintain their spot for just a week, getting knockout from the playoff tree because of losing streaks.