Just purchased a Nest camera (wired) and set it up in the Google Home app. I can view the camera fine from the Home app, but when I try to use google assistant to stream to a chromecast, I get the message "doesn't support streaming to remote screens". I'm not sure why this is though... the google help center says that the Nest camera (battery) and doorbell camera (battery) can only stream to a "smart display screen" (I guess the Nest hub?), but does not mention the Nest camera (wired). I'm also pretty sure the previous Nest camera could stream to Chromecast, so this seems like a weird step backwards in functionality. Any ideas?
Sorry for my late response. Thank you for all of your patience while waiting for a reply. I just wanted to make sure that your issue is addressed. I can definitely understand how frustrating your situation must be. I would love to help you find a solution to this issue.
Please let me know if you need further assistance.