[FerdSlav]

Stating that Thread is a rebranding of Zigbee is incorrect. Both are based on 802.15.4 for their physical layer but the two are entirely separate and managed by different standards bodies (Zigbee under the Zigbee Alliance, now CSA - Thread under the Thread Group). Where some confusion may come is that Matter is now also under the CSA (just like Zigbee).

[clairity]

while you're technically correct, it's a rebranding from the (zigbee) consumer's perspective, via the CSA being a rebranding of the zigbee alliance. within that context, thread is the most direct analog of the zigbee protocol, as they're both implementations of 802.15.4 for low-power local mesh. consumers won't need to (and most won't want to) understand it deeper than that.