There can be a use of the word ‘God’ as in Heb 1:8 which carries no concept of non-human being or proper noun individual identity, in other words, a status. Like royalty. The status of crown prince can change into status of king without any change to the nature or identity. A king can temporarily make the crown prince into an acting king without the king losing status as true king. Jesus is described in Heb 1:8 as ‘O God’, for reason of status of that time when he is given by God the top throne, yet Jesus himself made clear that the Father is the sole true God. Rev 20 and 1 Cor 15 tell us how this time of Jesus ruling from the throne of God is limited, Rev 20 tells us to 1000 years, after which Rev 20 and 1 Cor 15 agree he will become forever subject to God (the Father, the One True God). Only the Father is God forever. This must be why Jesus calls Him the Only True God in John 17. The divine throne is eternal, and while the Father currently occupies it in 2024, sharing its authority with Jesus Christ to some extent, ultimately only the Father will reign from it for all eternity. The Lord Jesus Christ will soon occupy it to rule from it for a thousand years and then, after this time, the Father will rule as God from it forever.