Hey Harris,
I had forgotten about this. I am looking at my recent outdoor rides and it looks like it is capturing standing / seated time on my Edge 1040. I have found one case during an indoor ride recorded on my Enduro2 where it seemed to capture nothing until the last 30mins of the ride. I am looking thru my rides now.
I am sorry to hear you are having a poor experience with Garmin. I’ve had solid support from them across several devices to include a replacement set of XC200s. My pedals seemed to be dropping out cycling dynamic data intermittently during the ride. They then show no drops I the data on GC. I was sent a new set. I see it happen occasionally now but do not think it’s impacting my data.