PMOS as a load switch
The transistors here are not that much important.
You need to know first the behavior of the GPIO pin of your MCU at power on.
Other than that, you may want to increase R106 at least 20x because more base current is of no use here.
You may as well add a resistor from U13 base to ground - just in case when GPIO sources some unwanted current when in high-impedance/indefinite/maybe pullup state. Some GPIOs do that.