Jewish sources have an extremely negative view of slapping a person in the face; regardless if it's the right cheek, or the left one.
The Talmud (Sanhedrin 58b) teaches:
And Rabbi Ḥanina says: One who slaps the cheek of a Jew is considered
as though he slapped the cheek of the Divine Presence; as it is
stated: “It is a snare [mokesh] for a man to rashly say [yala]:
Holy” (Proverbs 20:25).
The verse is interpreted homiletically to mean: One who strikes [nokesh] a Jew is considered as though he hurt the cheek [lo’a] of the Holy One.
Rabbi Eliezer Papo, in his ethical work "Pele Yoetz" (Bizayon) explains, since G-d made the Adam in his image, therefore humiliating a person [by striking them in the face] is as if they're humiliating the Shekhina, God forbid.
According to Wikipedia:
For the sages, it was deemed of utmost importance to avoid shaming
another person. Hence, they sought to impose liability for humiliating
personal injury, regardless of the physical effects of the injury.
But for certain acts of violence that involve very little pain and no
permanent disablement, but mainly disgrace, the sages fixed a scale of
compensation, namely: for a stroke with the fist, one sela or shekel;
for a slap with the open hand, two hundred zuzin; for a back-handed
slap, or for pulling a man's ear or hair, or tearing off his cloak or
a woman's headgear, or spitting at a person if the spittle reaches his
flesh, four hundred zuzin (B. Ḳ. viii. 6).