@Emil It would be awesome if you all could add a Global Datastore in the future! If you need any help testing, I would be happy to play with a beta version!
The Govee lights I'm working with are an older model H7013 which are warm white dimmable string lights that support Wi-Fi and Bluetooth, but that means the integrations are pretty limited to IFTTT which can be slow, and I can't detect the current state. The LAN API is much faster and I can check the current state, which is great.
I've looked into upgrading to newer Matter versions from Govee or anyone else but they are all more expensive than is worth it for me when what I have it working, and many newer models have more features/complexity than I really want (don't want RGB or anything, just want 2700K warm white and dimmable).