Suggest zigpy-cc + zigpy-znp and ZHA devs team-up with @slaesh to test his new CC2652RB stick as another reference adapter.
@slaesh I believe that you already donated adapters to the Zigbee2mqtt project so wondering if you would also be willing to donate some of your CC2652RB stick adapters to @sanyatuning & @Adminiuga & @puddly & @dmulcahey for zigpy/zigpy-cc and zha-ng/zigpy-znp development as those Zigbee radio libraries is used via the zigpy project in Home Assistant's ZHA integration component for its native Zigbee support?
FYI; @slaesh has developed his new CC2652RB stick as an open source hardware designed similar to the CC2652R stick by Electrolama/omerk as a another friendly competition option, and as noted, slaesh stick is based on CC2652RB instead of CC2652R. His adapter is since recently listed as a supported reference adapter by Zigbee2MQTT on their project page.
https://github.com/slaesh/cc2652-stick
and
https://slae.sh/projects/cc2652/
Like omerk, slaesh is also based in Europe and is selling the finished product (unflashed) via Tindie
https://www.tindie.com/products/slaesh/cc2652-zigbee-coordinator-or-openthread-router/