Notifications on Apple Watch when connected to CarPlay

Is it normal not to get notifications on your Apple Watch when connected to CarPlay. It is kind of annoying as I put my phone away when driving and would like to get notifications quickly after I leave home to ensure I’ve remembered to close the gates etc.
what would need to be done to have the Homey App run on CarPlay?

I am not sure but sometimes car integrations allow distractions in drive mode. Maybe you should check if Carplay has drive mode settings for notifications?