Exactly, that's also my setup. Works as a charm! The power meter is a zwave switch which sits between the socket and the washing machine.
I got one of these: https://www.amazon.com/dp/B08LN3C7WK . Connected it to my HomeBridge server (all local), set up a push notification using when the energy drops below 5 watts (which happens about 1-2 minutes after the cycle ends).