No it isn't.
Neither was Isaiah's experience in Isaiah 6.
Isa 6:1-5
6:1 In the year that king Uzziah died I saw also the Lord sitting upon a throne, high and lifted up, and His train filled the temple.
2 Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.
3 And one cried unto another, and said, "Holy, holy, holy, is the LORD of hosts: the whole earth is full of His glory."
4 And the posts of the door moved at the voice of him that cried, and the house was filled with smoke.
5 Then said I, "Woe is me! for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the LORD of hosts."
KJV
Isaiah saw a vision of The Father in Heaven sitting upon His throne. Isaiah thought he had died. Isaiah was 'in the spirit' to see that.
Ezek 37:1
37:1 The hand of the LORD was upon me, and carried me out in the spirit of the LORD, and set me down in the midst of the valley which was full of bones,
KJV
Ezekiel was "in the spirit of the LORD" to see that vision.
Same thing with Apostle John in Revelation. John's flesh was captive on the Isle of Patmos while he was "in the spirit" to receive the visions of Christ's Revelation. It is not about a rapture, because the Old Testament prophets experienced the same kind of event in their day.
And if the serious Bible student had actually studied their Old Testament Books about this, then they would have easily known anyone saying it's about a rapture of the Church didn't study their OT, and are just making things up to deceive God's people with.