OK. Actually, the last 6 Chapters are interesting. We get several ceremonies, and chances to say good bye to a large cast of characters about whom we like and are concerned about. We are given enough information to form a good notion as to how they will order their lives. I for one would feel cheated if everyone gathered around Aragorn's throne, to a lot of cheering and stirring music, as the Star Wars films tend to end.
There is also a fading, a return from the high pomp of Gondor to the more mundane reality up north. The Rivendell of Many Partrtings is a sad shadow of the place we first saw in Many Meetings.
There are lots of hints that all is not well, especially with Frodo. "Alas, there arew some wounds that cannot be wholly cured."
And the meeting with Saruman on the road must signal that all business hasn't yet been taken care of: how many readers notice that, when he changes course after the encounter, he is heading directly for the Shire? Gandalf surely did. Did Merry or Pippin? Barliman's welcome in Bree is not cheery: I wasn't expecting a jolly homecoming to the Shire after that scene, though just how Saruman had ravaged the place was a disturbing surprise to me on my first reading.
"This is worse than Mordor! Much worse in a way. It comes home to you, as they say, because it is home, and you remember it before it was all ruined."
And so, the true closing is the healing, as much as can be healed, in the final chapter.