Using Google Assistant integration for Toshiba AC

I set up Home Assistant with Homey and can get it to sync and I am generally very happy with the integration.

Is it possible to use the Google Assistant integration with a device that is not supported by Homey?

I have Toshiba ACs with WiFi modules. Their app is subpar so I prefer not to use it ever. It does however allow a connect to Google Home Assistant so I can use the Google nest screen to turn on/off the ac or set the heating or inquire to the temperature.

Toshiba ACs don’t integrate with Homey (yet) and hence was trying to find out if I can tell Homey to ask Google Home Assistant to serve these ACs as I can’t steer them from Homey.

Any thoughts?