Aquinas:

Heb 2:9 [n. 121] But we see Jesus, Who was made a little lower than the angels, because of17 the suffering of death, crowned with glory and honour: that, through the grace of God, He might taste death for all.

125. For all. Behold, the usefulness.

However, for all can be understood in two ways. Either so that it may be an accommodated distribution, namely, for all the predestined, for it is for these only that it has efficacy. Or absolutely for all as to sufficiency. For so far as concerns itself, it is sufficient for all. I Tim. 4:10: Who is the Saviour of all men, especially of the faithful. Chrysostom says, “He died for all men in general, since the price is sufficient for all. Even if not all believe, He Himself nevertheless fulfilled what is His.”

Thomas Aquinas, Commentary on the Epistle to the Hebrews (South Bend, Indiana: St Augustine‘s Press, 2006), 60, 62.

[Note: Aquinas, along with Augustine, Prosper and Lombard, was one of the founding fathers of hypothetical universalism]