The Connectivity Standards Alliance Announces Zigbee 4.0 and Suzi

Thread/Matter is a bullshit standard for “growth and engagement” home automation whose primary purpose is to get users locked into an ecosystem and watch ads or “engage”, with the “home automation” part being secondary (if it automates the home too well they won’t have to “engage” so we can’t have that).

Ignore and move on.

If you want home automation, either pony up for KNX (you can do it yourself, the only “closed” part of the ecosystem is that the configuration tool is paid), or use conventional Zigbee with an open-source coordinator like Zigbee2MQTT and Home Assistant, or Wi-Fi devices that either have an official local API like Shelly or reverse-engineered one.

Matter/Thread/etc is just the latest iteration of creating the next batch of e-waste 5 years down the line.