Polar opposite of our experience. We connected our Homepods to our ATV the day the software update came out and it has worked 100% flawlessly ever since. Never disconnected once, even after software updates.If it’s like the current set up with the HomePod playing the audio from Apple TV expect frequent disconnections, the HomePod to instead play random music that was on your iPhone a few weeks ago, randomly switch off the AppleTV music, etc. with fiddling you can always get it to work. Just remember never use the HomePod for anything else or it will take another 5 minutes to get it reconnected. Usually it will only take 3.