Were the Wifi or Thread? I'm generally disenchanged with Wifi for bulbs and such - having SO MANY devices on my network has been a big maintenance and performa

Were the Wifi or Thread? I'm generally disenchanged with Wifi for bulbs and such - having SO MANY devices on my network has been a big maintenance and performance pain on the 2.4 bands - and have been thinking about moving away from that to Thread (which seems to be new replacement for the old non-wifi Z-wave/Zigbee).