I tried it, then uninstalled pretty quickly. If I say, "Play music" then 10% of the time it would play music, and the other 90% it would tell me it can't. Same with many other assistant commands like controlling lights.
What even is the option here? When Google got rid of adding things to lists, I started my official transition away from them by moving to Proton, self hosting more stuff, etc. But for a voice assistant it seems like open source just isn't there yet, it doesn't have the hardware, and my only remaining option is to switch to Amazon (no.) Or Apple.