It is not certain that TMC2208 in StealthChop won't work, but it is unreliable. The workaround for this is to use SpreadCycle on the extruder. TL;DR ...
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stealthchop-extruder
Step/Dir Drivers for Two-Phase Bipolar Stepper Motors up to 2.8A peak –StealthChop™ for Quiet Movement – UART Interface Option –Sensorless Stall .... There are about 8 inches of Bowden tube between the flying extruder and ... As soon as I turned off stealthchop for my extruder, I started getting .... Can I use stealthchop mode on an extruder with pressure advance? Many people successfully use “stealthchop” mode with Klipper's pressure advance. Klipper ... 939c2ea5af