The best gets better - Home Assistant Connect ZBT-2

Suzi long-range Zigbee technology will only use Sub-1GHz radio frequncies (meaning that just like Z-Wave it won’t be affected by the official WiFi bands), but both Suzi and Zigbee 3.0/4.0 can be affected by interference if keep Zigbee radios or devices physically too WiFi radios. Read and follow this guide: