@EricWenger it truly depends on your uses cases you could segment your network to block off that traffic but I mean what are you solving for? If your use case is security-related i would ask the question of how are your devices connected? (Direct via Ethernet or WiFI) this will really help and decide how or if to segment your network. Personally, I have a separate network for my Sonos sound system and the controller that operates it but that is purely for ease of administration(use).
I am always up for advanced tinkering and thoughts if you have any questions!
It would be pretty hard do define overall best practices, but I have been thinking about doing this for my home network for security concerns. With my ever growing collection of "smart" devices and speakers I am concerned with the attack vector that could allow access to my network through a compromised or backdoored smart switch/speaker/light/camera/lock/thermostat, etc. The hard part is really figuring out what inter-VLAN access might be required or desired to operate. Each device can have different requirement and might be difficult to work with when on a different VLAN than the one used for general internet access. Good luck.