Unfortunately, almost everything you're talking about there is about selling physical goods. The rules for electronic sales have been completely different for q

Unfortunately, almost everything you're talking about there is about selling physical goods. The rules for electronic sales have been completely different for quite a few years now and are a labyrinthine mess that makes even professional accountants frustrated and national tax authorities screw up the most basic processes. In most cases, they also don't have any minimum thresholds at all, and the few concessions that have been made are quite recent.