As long as all your devices are updated to iOS/TVOS 18, there is a new feature that lets you select the preferred hub. You can can also allow the system to automatically select the hub.
I concur with seek3r though. The AppleTV is a much better hub. HomePod of any model is terrible and the reason Apple finally gave in and allowed us to select our hub. Many complaints and backlash by the HomeKit community prompted this move by Apple because it would auto select a HomePod instead of the better option- AppleTV.