I bought me a BRT-100-TRV from Moes. And while it was detected in an instant in Zigbee2MQTT, the actual device is underwhelming. So I wrote a blog post about my findings, you find it here:
https://holgerschurig.github.io/de/moes-thermostat-brt100trv/
The only drawback for most of you is that I wrote this blog in german — but there are browser plugins (I suggest the one from DeepL, they translate much better than Google Translate) to have things accessible for you.