Numerous references in the GT, especially in Acts, are to Hellenized Jews; but this can be hard to sort out, for anyone who lacks detailed expertise.

For example, on the one hand, the ethnic conflict in the church at Jerusalem, that led to the appointment of the "deacons," was between non-Hellenized Jewish Christians and Hellenized Christian Jews.

"Andrew" is a Hellenic name, as also is "Philip," so it appears the Twelve themselves included Hellenized Jews.

On the other hand, there are many references to "Greeks" who were actually gentiles. Most of those to whom Paul appealed successfully were people of the same kind as Cornelius (Acts 10) gentiles who participated as much as they could in the life of a synagogue, only stopping short of conversion itself. Such persons today would be prone to become Noahides.

P.

‎‎חֲזַק וֶאֱמָץ
אַֽל־תַּעֲרֹץ וְאַל־תֵּחָת
כִּי עִמְּךָ יְהוָה אֱלֹהֶיךָ בְּכֹל אֲשֶׁר תֵּלֵֽךְ׃