I am also heavily invested in Apple gear, but any feature dealing with Siri/HomeKit gets a big doubt from me.

I have two HomePods setup in stereo mode configured to an Apple TV 4K, and I cannot reliably get it to tell me today’s date, start a timer, play a movie, and not even pause or resume the Apple TV 4K.

It is so bad, that recently, if you say “Hey Siri, resume”, the audio resumes playing from the Homepods, but the Apple TV 4K still displays the screensaver until you press play on the remote. I do not even understand how that bug works (and it is a new one, the software continuously gets worse).