Hello!
Power convertors can cause noise, But I have not read anything
about the interference with the MCU. In regards to the static from the
motors, that should be taken car of by your motor drivers, if you have any.
If not, you are driving the servos directly from the MCU, I might be concerned.
I would not expect a problem; only isolate the MCU from the motors with
a motor driver. Keep me posted.......