Not sure, I haven't been following Prusa too much lately.

I've spoken to a few people on klipper who are inputing the variables for compensation in directly from an attached accelerometer on the printer frame. That'd be the way i'd want to go rather than taking a pair of calipers to the ringing artifacts on the print itself.

Yeah, attaching a simple $1 accelerometer to the frame sounds like a great solution, I wonder why this isn't done more often.