The current version of the Home Assistant Lyric integration does not support external battery powered temperature/humidity/occupancy sensors that are paired to Honeywell T-Series thermostats, where as the Homekit Controller integration does.
This becomes an issue when using Home Assistant Core, in a Docker configuration such as Docker Swarm that does not support multicast communication (unable to use host networking). The Homekit integration requires multicast for pairing to Home Assistant.