I trust you don't believe that the devil will be saved.
I believe & know Love Omnipotent will save Satan & all others. See Col.1:20; Phil.2:9-11; Rev.5:13; Rom.5:18-19, etc.
This includes everyone in the universe, including the dead and demons:
Rev.5:13 And every creature which is in heaven, and on the earth, and under the earth, and such as are in the sea, and all that are in them, heard I saying, Blessing, and honour,
and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever.
John speaks of "every creature" & to emphasize this again he repeats "and all that are in them":
Rev.5:13 And every creature which is in heaven, and on the earth, and under the earth, and such as are in the sea, and all that are in them, heard I saying, Blessing, and honour,
and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever.
This worship (v.13) uses the same worshipful words as the redeemed of vs 9-10 use in v.12:
12 Saying with a loud voice, Worthy is the Lamb that was slain to receive power, and riches, and wisdom, and strength, and honour, and glory, and blessing.
All this being in the context of salvation - "the Lamb that was slain" (v.12 & 13).
That being the case - the point is - not every human who bends the knee will be necessarily saved either.
"Phil 2:10–11, in which Paul stresses again that each and every creature will finally submit to Christ: “that in the name of Jesus every knee may bow, in heaven, on earth, and in the underworld, and every tongue may proclaim that Jesus Christ is the Lord.” In Phil 3:21 Paul hammers home again that Christ has the power to “submit all beings to himself.” Now, the verb that indicates the proclamation of the lordship of Jesus Christ on the part of all is ἐξομολογέω, which in the NT always means a voluntary and spontaneous, and not forced, confession, just like ὁμολογέω and ὁμολογία. This universal confession will be voluntary..." [p.40-41]
Ilaria Ramelli, The Christian Doctrine of Apokatastasis: A Critical Assessment from the New Testament to Eriugena (Brill, 2013. 890 pp.)
Scholars directory, with list of publications:
Ilaria L.E. Ramelli - ISNS Scholars Directory
"Talbot argues Paul anticipated this exhaustive reconciliation because of the verb he chose: confess. According to Talbot, “he chose a verb that throughout the Septuagint implies not only confession, but the offer of praise and thanksgiving as well.”3 He goes on to suggest that, while a king or queen could force a subject to bow against their will, praise and thanksgiving can only come from the heart:
"either those who bow before Jesus Christ and declare openly that he is Lord do so sincerely and by their own choice or they do not. If they do this sincerely and by their own choice, then there can be but one reason: They too have been reconciled to God.4" "
A Pauline Universal Salvation? Universalism and Philippians 2:9-11 (4) | jeremy bouma
9 For this reason also, God highly exalted Him, and bestowed on Him the name which is above every name, 10 so that at the name of Jesus EVERY KNEE WILL BOW, of those who are in heaven and on earth and under the earth, 11 and that every tongue will confess that Jesus Christ is Lord, to the glory of God the Father. (Phil.2:9-11, NASB emphasis)
3Therefore I inform you that no one who is speaking by the Spirit of God says, “Jesus be cursed,” and no one can say, “Jesus is Lord,” except by the Holy Spirit. (1 Cor.12)
22"Turn to Me and be saved, all the ends of the earth; For I am God, and there is no other. 23"I have sworn by Myself, The word has gone forth from My mouth in righteousness And will not turn back, That to Me every knee will bow, every tongue will swear allegiance. 24"They will say of Me, 'Only in the LORD are righteousness and strength.' Men will come to Him, And all who were angry at Him will be put to shame.…(Isa.45)
11 It is written: “As surely as I live, says the Lord, every knee will bow before Me; every tongue will confess to God. (Rom.14:11)
And every creature which is in heaven, and on the earth, and under the earth, and such as are in the sea, and all that are in them, heard I saying, Blessing, and honour, and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever." (Rev.5:13)
https://www.tentmaker.org/books/hope_beyond_hell.pdf