H-bridge with peltier cell

No.
The peltie is driven less efficiently than a constant current drive of the same power, even with PWM, which is well faster than the thermal time constant.
This is for reasons other than the thermal time constant.

Please read this documents Page:2 from TEXAS INSTRUMENTS.

The above document also wrote that a motor driver IC was used for polarity invert.

EDIT: fix mistranslation.