Librem 5 carrier compatibility thread

I think this is fine. I just came to the Sprint section which is what is relevant to me and I hope we can talk about it in the “Replay” tab.
This is what’s going on with me and I hope Purism read this: According to the sources you cite here, my option goes to BroadMobil 818-A1. Now… What worries me is that I asked a customer representative in my local Sprint store about the possibility of me using my Librem5 with them. The guy had no idea what Librem5 is or anything about Linux or a cellphone using something different than iOS or Android. His answer was to bring the phone to the store. Later on when I had the information about the modem (by that time it was only PLS8) I went back to the store and tried again, this time mentioning the modem I would be using. The answer was the same (from a different person not knowing anything about Linux, Linux phones or Librem5): “You have to bring the device for us to be able to tell if you could use it with Sprint”.
I don’t know how Purism is going to play it but I hope I can opt for the BM818-A1 BEFORE I get the phone. This is what I wanted to address here. I hope Purism plays it right and I don’t have to buy a second modem and deal with installation.