Messenger is a secondary characteristic of the prophets and apostles. The final judgment will be wrought through the heavenly angels, not by the servants. The holy ones or saints will be given authority as delegates to pass judgment, sitting on their thrones. But the coming with the heavenly angels depicts the wrath and punishment. The human humans cannot inflict punishment.
ESV
2 Thessalonians 1:5-10: “This is evidence of the righteous judgment of God, that you may be considered worthy of the kingdom of God, for which you are also suffering— since indeed God considers it just to repay with affliction those who afflict you, and to grant relief to you who are afflicted as well as to us, when the Lord Jesus is revealed from heaven with his mighty angels in flaming fire, inflicting vengeance on those who do not know God and on those who do not obey the gospel of our Lord Jesus. They will suffer the punishment of eternal destruction, away from the presence of the Lord and from the glory of his might, when he comes on that day to be glorified in his saints, and to be marveled at among all who have believed, because our testimony to you was believed.”
Daniel 7:21-22: “As I looked, this horn made war with the saints and prevailed over them, until the Ancient of Days came, and judgment was given for the saints of the Most High, and the time came when the saints possessed the kingdom.”
Matthew 13:41-42: “The Son of Man will send his angels, and they will gather out of his kingdom all causes of sin and all law-breakers, and throw them into the fiery furnace. In that place there will be weeping and gnashing of teeth.”
Luke 22:29-30: “and I assign to you, as my Father assigned to me, a kingdom, that you may eat and drink at my table in my kingdom and sit on thrones judging the twelve tribes of Israel.”
Matthew 19:28: “Jesus said to them, “Truly, I say to you, in the new world, when the Son of Man will sit on his glorious throne, you who have followed me will also sit on twelve thrones, judging the twelve tribes of Israel.”
Matthew 25:31: ““When the Son of Man comes in his glory, and all the angels with him, then he will sit on his glorious throne.”
1 Corinthians 6:2-3: “Or do you not know that the saints will judge the world? And if the world is to be judged by you, are you incompetent to try trivial cases? Do you not know that we are to judge angels? How much more, then, matters pertaining to this life!”
Revelation 18:20-21: “Rejoice over her, O heaven, and you saints and apostles and prophets, for God has given judgment for you against her!” Then a mighty angel took up a stone like a great millstone and threw it into the sea, saying, “So will Babylon the great city be thrown down with violence, and will be found no more;”
So, the holy ones άγιοι (saints) are different than the holy angels, or mighty angels. However, Jude simply mentions άγιοι holy ones, which refers to angels.
Jude 1:14-15: “It was also about these that Enoch, the seventh from Adam, prophesied, saying, “Behold, the Lord comes with ten thousands of his holy ones, to execute judgment on all and to convict all the ungodly of all their deeds of ungodliness that they have committed in such an ungodly way, and of all the harsh things that ungodly sinners have spoken against him.””
Angel is a name referred to humam emissaries as well, since emissaries are considered holy or reverent in the ancient culture. It can also refer to Satan's emissaries. It is best to understand from context and stick to the literal translations. Heavenly angels of God may be also called elohim in more ancient scripture, don't refer to men. They depict God's powerful army for the punishment of judgment.
See related God leaves judgment to others