Besides 868MHz z-wave devices, it’s not possible to use RF 868MHz devices on post-2019 models
https://support.homey.app/hc/en-us/articles/360015447093-Compare-the-existing-Homey-Pro-models
Only the 2016-2019 series (the white spheres) have a RF 868MHz radio built in, but in reality it turned out to be not usable.
