Greetings @Nkjn2019
Welcome to the Roku Community and thanks for posting regarding the issue you are experiencing with connecting your Roku Smart Home Camera to your Google Home.
For more detailed information about connecting your Roku Smart Home device to Google, visit our Support page here: Control your smart home devices with Google
Please keep us posted what you find out and we will be more than happy to continue assisting you further.
Thanks,
Danny
Danny R.
Roku Community Moderator