Integrating HA-SmartThings-Alexa-Google with MatterHub

Hi, im considering upgrating from Aeotec Hub (Samsung SmartThings platform) to HomeAssistant.
Everything works flowless now: all my wifi, matter brigdes and zigbee devices are connected to my ST hub and integrated with Echo and Google Nest for voice control.
I really like the HomeAssistant platform and community and i want to upgrade but i am considering to keep every platform im using now with HA as the main “brain” for local automation and device management.
That’s my ideal workflow to keep everything up:

  1. Run HA and add all devices and create local automations
  2. With HA MatterHub add-on i could expose all devices i want and with SmartThing hub add them to the SmartThigs platform.
  3. Add everything to Alexa and Google Assistant with the cloud2cloud integrations like i do now.
    Does it make sense?