It is written:And he shewed me a pure river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb. In the midst of the street of it, and on either side of the river, was there the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations. And there shall be no more curse: but the throne of God and of the Lamb shall be in it; and his servants shall serve him: And they shall see his face; and his name shall be in their foreheads. Revelation 22:1-4
The Right hand symbolizes all power and authority. Furthermore itt does not say thrones but it Clearly says THRONE, meaning 1 throne and not 2.
It says the THRONE of God AND of the Lamb.
You seem to have a hard time understanding the nature of God for some reason.
It is also written:For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ. 2 Corinthians 4:6
Once again{In The FACE of Jesus Christ}
...and his servants shall serve him: And they shall see his face; and his name shall be in their foreheads. Revelation 22:3,4
The more you grow as a child of God the greater the Understanding you will get of the True Mystery and Nature of God.
Example, if you do not understand this because this is to be understood by the Spirit.
It is written:And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof. Revelation 21:23
The Fullness of God the Father is In God The Son. Do you see the connection here?
God Bless!