[wokkel]

The main thing that i remembered from thread/matter is that vendors can lock out devices and other users hostile stuff. I sure hope plain zigbee is here to stay as having bigtech decide the brand of my in-wall switches are wrong would truly suck.

[ssl-3]

How can a vendor "lock out" a device that cannot talk to the outside world?

[lillecarl]

MAC address ranges or something would make sense

[ssl-3]

Perhaps so, but if that is what is being suggested then that's not anything that is in any way unique to Matter or Thread.