New Body Scan 2 owner, what are best practices for usage?

I don't think this is a tech support post but it has the tone of tech support because I am confused by the device and have lots of questions. If the mods consider it to be tech support please delete with my apologies. I am just looking to present some of the challenges I am finding with the scale to get a conversation going on how to best work with the scale and it's app. I think this information will be useful to any new owner so hopefully that is how it is perceived.

I have had my Body Scan 2 for about 2 weeks now. It took a while to get the hang of using it given the complete lack of documentation. First issue was understanding what the yellow circle means and how to turn it green. I was moving my arms around thinking I was holding the handle wrong and that was moving the yellow circle inconsistently making me think I was on the right track but then I realized I was also shifting my weight and that was the key to getting the green circle. Then the SpO2 scan asked me to keep the marker in the green section without explaining how I do that. So I was moving my thumb around again doing the wrong thing but the marker was moving so again thinking I was on the right track. My wife realized it was pressure on the thumb and not the placement. I think the interface could use more guidance such as "use less pressure", "use more pressure" etc

Anyway now that I have the hang of the scale I am wondering am I supposed to use the handle for every reading or just use the handle once a week or something like that? What are most of you folks doing in regards to using the handle or just scanning weight/heart.

I have been using it every day and it keeps saying "It's time for a longevity scan" and going through all the steps taking so long to complete. I was under the impression that would only happen once in a while. Can you schedule the longevity for once a week on the weekend so morning scans before work are faster? I have not activated Withings+ yet, perhaps that is why it thinks I need a longevity scan every day? Or maybe I mis-understood and I am supposed to control it by using the handle or not.

Is there a way to know when the readings have been sent to the cloud? My Aria scale used to end with a confirmation or failure of cloud upload. I take a scan and open the app and some of the readings are dated today and some are not, it takes a while before they all update. Is that normal?

The app is pretty difficult to navigate. Any tips on finding the various features in the app? It is not always clear that there are more details behind a value if you tap on it. Sometimes the app enters a page which starts asking questions that I don't want to work with at the moment and there is now way to back out. I have to force close the app to return to the beginning. I am using the current iOS app. I have heard the beta app is much better, should I install the testflight version?