No, I was neither able to integrate the Tado X Thread network into HA nor to share the Tado X TRVs with HA. But it is my understanding that others has success, see this thread.
On the other hand, there is an update for the existing Tado integration on the way which will probably be part of HA 2024.12, see here. But this is not what I was looking for since the HA Tado integration uses the Tado API and therefore requires a Tado account. I was looking for controlling the TRVs completely locally.
Although quite stylish, the Tado X TRVs come with some limitations I didn‘t like: open-window detection only with a paid Tado account; heat curve not stored locally (when you lose your internet connection, they stay in their current state); Tado-specific battery pack; no once-a-week cycle to keep valve moving; … I sent them back, got a refund and will try the Bosch TRVs some day.