Pretty much… Everyone’s experience is a little differtent. Some have managed to get the Conbee stick to work. I could not. I did solve the battery drain issue using the latest Sonoff Zigbee stick running the latest firmware and MQTT but again there are lots here and elsewhere who could not get the Sonoff stick to work either. We see a similar challenge with people using Smartthings or Hubitate. Some are frustrated some are happy…
This seems to be a feature of the IKEA buttons. Sometimes they will work fine sometimes they just eat batteries.
In my large house, I have 9 IKEA roller binds, with 9 repeaters and 9 (up down) buttons… Since I switched to the Sonoff Zigbee stick everything as been fine and I have not replaced a battery in about 5 months. (on the blinds too)
Sadly there are lots here who claim to have followed the exact same firmware setup on both the Sonoff and the IKEA stuff who are still burning through batteries.