Our situation isn't quite that extreme, but sometimes "modern" tech is just ridiculous. For home automation, every manufacturer has their own protocol. "Matter" has just confirmed what XKCD has to say: https://xkcd.com/927/
Add to that: every manufacturer wants to run their own servers and their own cloud service. I don't want my data strewn throughout the internet. For most devices, there is zero reason they couldn't work entirely within the LAN. Plus, we all know that half of those services will die in a few years, forcing us to replace perfectly good devices.