Feast of Tabernacles is all about temporary dwellings or Booths, what does this mean in Bible prophecies?

Jesus most likely arrived the first time (Christmas) during the Feast of Tabernacles. Those shepherds may have been out, tending their sheep, but everybody else in the Holy Land was likely outside too, waiting for Jesus to arrive, although they didn't probably know it, at the time. Jesus will likely pick the same day/season to come again, as well. Watch. Pray. Look for the signs of Jesus' return. This Jewish Feast Day is one of the big ones.

Our own bodies are temporary "tents" in which we live. The whole Earth is a temporary place for our existence. (Revelation 20:11 and 21:1)

This mean in Bible prophecies that it is time to rend garments, daub the lintels with lamb's blood, and binge watch your favorite TV show.

At jw.org you will find answers from the bible.

Unrelated to any "prophesies", Sukkot (Feast of Booths or Tabernacles) is one of the three Bible based pilgrimage holidays known as the Shalosh Regalim. It is an agricultural festival that originally was considered a thanksgiving for the fruit harvest.

Sukkot are hut-like structures that, according to the Bible story, the Jews lived in during the 40 years of travel through the wilderness after the exodus from Egypt.

As a temporary dwelling, the sukkah (hut) also represents the fact that all existence is fragile, and therefore, for Jews, Sukkot is a time to appreciate the shelter of our homes and our bodies.

Of course it is all about Yeshua the Messiah, He came and Tabernacled among us. He was born at Sukkot.

It doesn't mean anything in "prophesies".