Aqara hub firmware update 2.7.4 adds HomeKit functionality for more devices including Thermostat S2.
This thermostat is available in HomeKit with even more functions than MiHome/AqaraHome:
But it is impossible to control this thermostat from HA via HomeKit Controller.
I see only 2 entities - light and alarm_control_panel.
Please add thermostat support via HomeKit Controller.
Thermostat S2 is a ZigBee device but it is not supported in ZHA or zigbee2mqtt yet.