The overwhelming majority of the cases where γε is used in the LXX is in the combination καί γε.
It is also used in a limited number of places in the NT.
Luke 19:42 (Byz) wrote:λέγων ὅτι Εἰ ἔγνως καὶ σύ, καί γε ἐν τῇ ἡμέρᾳ σου ταύτῃ, τὰ πρὸς εἰρήνην σου· νῦν δὲ ἐκρύβη ἀπὸ ὀφθαλμῶν σου.
Acts 2:18 wrote:καί γε ἐπὶ τοὺς δούλους μου καὶ ἐπὶ τὰς δούλας μου ἐν ταῖς ἡμέραις ἐκείναις ἐκχεῶ ἀπὸ τοῦ πνεύματός μου, καὶ προφητεύσουσιν.
Acts 17:27 wrote:ζητεῖν τὸν κύριον, εἰ ἄρα γε ψηλαφήσειαν αὐτὸν καὶ εὕροιεν, καί γε οὐ μακρὰν ἀπὸ ἑνὸς ἑκάστου ἡμῶν ὑπάρχοντα.
How would that style of speaking / writing have impressed a Koine speaker who was not versed in the LXX?