Meta still has the Portal line of products - which were competitors to the Alexa, Siri and similar Google audio assistant product lines. I just searched and it looks like Meta are currently partnering with Amazon to license Alexa on these devices, but I could imagine they might want to replace it with their own LLM eventually.

I am a bit surprised that no one is talking about how these new LLM models will disrupt Alexa, Siri, etc. since that seems to be the most applicable market I can imagine.