Help!….Ramp Test Confusion

No.
You should try a ramp test in resistance mode. I personally prefer resistance mode for workloads above Z2, and do all ramp tests in resistance mode, too.

Like you I don’t like that erg mode forces me to change my cadence in unintended ways. I’d have to overcome extra resistance of the trainer to increase my cadence.

You could use the advice by others to get used to erg mode. In addition, I recommend you just try out resistance mode and see whether that meshes better with the windings in your brain.