I don’t. I watched a teardown video recently that I thought was enlightening, even though I don’t understand everything electrical/electronic that’s happening within the Chime Controller or Doorbell camera unit itself.
I think you’ve described a fairly exhaustive approach (standard and alternate wiring schemes with and without the Chime Controller), and since you’ve tried all of the wiring suggestions that Support has offered, I wonder if the Chime Controller itself might be faulty. I really don’t know. I’m just speculating about what the potential problem might be and where to go next (and also imagining that your doorbell chime probably worked as expected with a regular button prior to your Wyze installation).