I’ve seen several topics on the forum about the new IKEA Matter devices and I don’t think I’ve seen the info here, but some of them are also compatible with Zigbee in addition to Thread/Matter. This is the case for the buttons BILRESA (the version with a roller as well). I did see that in Matter version there were some connection issues for some, on my side, I have three, they are connected in Zigbee and not a single issue for 2 weeks.
I think these buttons can be very interesting for those who already have a Zigbee network, the price is ultra competitive 7€ the button, and even 15€ the 3 so 5€ per unit I don’t think I’ve ever found a price equivalent for a button (excluding AliExpress). And if you want to switch to Matter in the future, you will already have compatible devices.
I just made a PR to add the actions on_double and off_double so that the remotes are fully functional
For those who want to test, an image is available bertrandda/gladys:zigbee-mapping and there is a small maneuver to do on the device to switch it to Zigbee mode IKEA E2489 control via MQTT | Zigbee2MQTT. Do not hesitate to ask if you need help