If your thinking a throne Chair ---I would say not ----this word throne can be used figuratively in Scripture as well as literally ---and I think it is used figuratively when speaking of God's throne ----
Found this that may help to clarify this word and how it can be used in Scripture
ATS Bible Dictionary
Throne
An established emblem of kingly dignity and power, used by sovereigns on all stale occasions.
Heaven is called God's throne, and the earth his footstool, Isaiah 66:1.
His throne is also sublimely described as everlasting, and as built upon justice and equity, Psalm 45:6; 97:2. See also
Isaiah 6:2-4;
Ezekiel 1:1 28.
Christ is on the throne forever, as the King of heaven, Psalm 110:1;
Interesting Read here as well
https://www.gotquestions.org/throne-of-God.html
What is the throne of God?
There are several references to the throne of God in the Bible. Jesus calls heaven “God’s throne” in
Matthew 5:34, recalling God’s statement in
Isaiah 66:1, “Heaven is my throne, and the earth is my footstool.” Other references to God’s throne are found in
2 Chronicles 18:18;
Psalm 11:4;
Hebrews 8:1;
12:2;
Revelation 1:4;
3:21;
4:2; and many other verses.
A throne is a special seat reserved for a monarch. When the Bible speaks of God’s “throne,” the emphasis is on God’s
transcendence, dignity, and sovereign rule. The fact that His throne is in heaven further underscores the transcendent nature of God’s existence.
The throne of God need not be thought of as a literal throne. God the Father is incorporeal (
John 4:24). Not having a physical body, God does not literally “sit.” References to a divine throne are akin to biblical allusions to God’s “hand” or “mouth” or “eyes”—they are
anthropomorphisms, descriptions of God couched in human terms out of deference to our limited knowledge. God has to describe Himself in ways we can understand.
Isaiah sees the Lord “high and exalted, seated on a throne; and the train of his robe filled the temple” (
Isaiah 6:1). At that time, the prophet was having an inspired vision. God’s throne (and His robe) are not to be taken as literal, physical objects. Rather, God was communicating to Isaiah the magnificence, splendor, and exaltation of His Being. Other descriptions of the throne of God are found in other prophetic visions, e.g., in those of Ezekiel and John.
God’s throne is a place of power and authority. In
2 Chronicles 18:18, the prophet Micaiah relates his vision of God’s throne room, in which spirit beings stand in attendance. Compare this to
Job 1:6, where God demands answers from the angelic beings summoned there.
God’s throne is a place of majesty and honor. The Bible says that, when Jesus ascended to heaven, He “sat down at the right hand of the throne of God” (
Hebrews 12:2). There is no higher place than heaven. God is the King of heaven, and Jesus holds the place of honor at
God’s right hand.
God’s throne is a place of perfect justice. “He has prepared His throne for judgment” (
Psalm 9:7; cf.
89:14). The final judgment, described in
Revelation 20, is held before “a
great white throne” (verse 11).
God’s throne is a place of sovereignty and holiness. “God reigns over the nations; God is seated on his holy throne” (
Psalm 47:8; cf.
103:19). He does whatever He pleases, and all He does is good.
God’s throne is a place of praise. John’s vision of heaven includes a scene in which a “new song” is sung in praise to the One who occupies the throne (
Revelation 14:3). Around the throne, the praise of God is surely “glorious” (
Psalm 66:2).
God’s throne is a place of purity. Only the redeemed, those who have been granted the righteousness of Christ, will have the right to stand before His throne (
Revelation 14:5).
God’s throne is a place of eternal life. God is the Source of life. In heaven, John sees “the river of the water of life, as clear as crystal, flowing from the throne of God and of the Lamb” (
Revelation 22:1).
God’s throne is a place of grace. Not only does the throne of God represent judgment for the unbeliever, but it also represents mercy and grace for His children. “Let us then approach God’s throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need” (
Hebrews 4:16). Inside the Jewish temple was the
Ark of the Covenant, which was a “copy of the true” (
Hebrews 9:24), and it had a “mercy seat” where God’s presence would appear (
Leviticus 16:2, ESV).
One day, all creation will bow to the majesty of God’s throne (
Philippians 2:9–11). The regal beings surrounding the throne of God will “lay their crowns before the throne and say: ‘You are worthy, our Lord and God, to receive glory and honor and power’” (
Revelation 4:10–11