In which we have a quick look at how my i3 mega is doing after 1 year and ~4 Kg of PLA, and then install some TMC2208 silent step sticks and hear the difference through a reference microphone.

TMC2208 drivers: https://www.ebay.co.uk/itm/283005129765

Noctua NF-A4x10 FLX (12V version) https://www.ebay.co.uk/itm/381029518971

IMPORTANT NOTE: in the video I set the reference voltages to 0.85V. That is not enough for the extruder and it ends up skipping steps and causing under-extrusion (not to mention an annoying clicking sound) when doing the faster parts of the print. I set the reference just for the E0 driver to 1.5V and it is now behaving itself again. 1.2V was not enough.

IMPORTANT NOTE 2: The latest version of these printers from Anycubic have a different main board with the stepper drivers soldered on directly, rather than on pluggable modules, so you can't change them unless you're very proficient at surface-mount rework (n.b. I do a lot of surface mount rework and would not guarantee I could swap out the drivers successfully on the new boards, so I would say that attempting it at home is not recommended).