This is a genuine area of legitimate scholarly difference (ikhtilaf) among Ahl al-Sunnah, not a matter of one side being astray. Both sides agree that the hijab covering the hair, neck, and body is obligatory (Quran 24:31, 33:59); the difference is only over the face and hands. A group of scholars hold that covering the face is obligatory, drawing on verses such as "tell the believing women... to draw their veils over their bosoms" and the command to the wives of the Prophet, while others hold it is highly recommended but not strictly required, viewing the face and hands as not part of the ʿawrah. A woman should follow this with taqwa and, especially amid temptation, covering the face is the more precautionary and virtuous course.
Evidence — the daleel
On deen2u
Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.