I assume if the PD charger can support the voltage required it’ll charge no matter what? If you read the back of the charger it should say what voltages/max current they support and it should the voltage and max current on the framework as well
I think the 180w requirement isn’t really a requirement but just enough power that it can charge while drawing the maximum amount of power
idk, never worried about it but my main computer doesn’t have it so I just passively use that for important things