Apparently it's to detect nearby devices so that you don't have to pair the traditional way.
The other thing that bothers me about these lights is they have a built in microphone that listens for music playing and can adjust the lights to match the music. I haven't looked myself but some users on Reddit have posted about the amount of network activity with Govee cloud and Google Analytics being very high.
If I can isolate them from accessing the internet and connect through Home Assistant locally then I may keep them.. These are sort of a trial run for future permanent Christmas/Occasion lights on the outside of the house.
Thanks I will look into those products as well as Home Assistant. I've yet to pull the trigger on installing HA, I don't have a lot of devices that have made me want to use it yet. We only have a couple Google speakers and Chromecasts.