I would like to offer just a bit different picture to your thinking, to see if it is agreeable to you.
The KJV does ok with what they had, but the NASB gives that passage a clearer flow of the statement.
1God, after He spoke long ago to the fathers in the prophets in many portions and in many ways,
2in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world.
3And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high,
4having become as much better than the angels, as He has inherited a more excellent name than they.
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When Christ told the desciples “if you have seen me, you have seen the Father,” it wasn’t that they looked personally at the Father, but the exact representation of the Father. The Hebrews passage gives a list (so to speak) of the attributes of the Father represented in the Son.
The writer of Hebrews is very careful to show the eternal aspect of the Son, yet also give positional aspect as expressed in the “name” being exalted above even the angels.
When Marry was given the name for the child, it was a human name. The human name now above all names. “That at the name of Jesus, every knee shall bow.”
Therefore hypostatic must have a human form, a human body that can be touched, felt, seen, bowed before, and still bears the marks of the crucifixion.
The believers are like Christ in that we are never body less. But when she’d of the mortal are clothed in the immortal.
Unlike The Father, who is Spirit.
This is important because on the Cross, Christ gave His Spirit into the Father’s care (using human imagery) His body dying. Unlike the believers spirit, being unshackled from the dead body is given that new body, the Spirit of Christ raised Him from the dead in the same body.
All the attributes Christ had before the crucifixion he had after the crucifixion.
The only attribute left then to be exalted was His name.