Hello Mika! The app Eve needs a powered Thread enabled accessory from us to as well display the Thread Border Router. The Thread network is of cause working even without. You can check Thread functionality as well with this tool: the app Discovery on iOS (https://apps.apple.com/de/app/discovery-dns-sd-browser/id305441017) or the version for the Mac (https://apps.apple.com/de/app/discovery-dns-sd-browser/id1381004916?mt=12). In the app at _hap._udp. you will find the Thread devices, at _meshcop._udp. your Thread Border Router (HomePod mini and/or Apple TV 4K 2021).
Best regards, Volker
Feb 23, 2022