According to a well-known narrative, the Bnei Yisrael did not change their names, language, or dress in Egypt. Elsewhere I have written about the origins and iterations of this and related ideas. See: https://www.academia.edu/28574595/_They_did_not_Change_their_Names_their_Language_or_their_Dress_The_Life_cycle_of_a_Peculiar_Midrashic_Variant. An interesting treatment of this issue is found in a "quasi-responsum" or "pseudo-responsum" of Rav Asher Weiss: Minchas Asher on Shemos, siman 1. Available here: https://minchasasher.com/shiur/shmot-shmot-shiurim/jewish-identity-shelo-shinu-5778/. I think this essay actually helps us understand Rav Asher and his public persona, how he perceives himself as a bridge between different worlds.