Not sure I understand this point. Which resistor would you replace with a diode?

Sorry, I think I was talking nonesense (doing this in my head and just woke up 😅).

Not sure it’ll work with just a P-FET actually. You’ll likely need to control the PFET with a NFET, otherwise you still end up with too high a voltage on your control pin when the FET is off due to the gate pullup (unless you can use a fet with a very high Vgs Threshold).

The above comment about diodes was to protect the microcontroller pin, but you end up not being able to control the FET doing it that way.