Seems you are right. Play Store is OK, I can install and run Netflix (which I don't care, that was a test), and I can pay Apps. I also checked with three "Safetynet check" apps, since it seems that Play Store is not always accurate, and two of them said the phone passed (the third not, no idea why). So in fact, it seems that I am OK, on my side.
Thank you for pointing that to me !