Ok, I am running the current version of Apple’s osTV on an Apple TV4K. I’ve been apple to connect my Sonos One to earlier versions of osTV with only minor annoyances (need to reconnect all the time). Apple has recently update the Apple TV 4K and I can no longer connect to Sonos One via Airplay 2. I have two other Apple TV, one with an earlier release of osTV and I can still connect to my Sonos One. I can also connect to my Sonos One via my iMac (MacOS Big Sur) and my iPhone/iPad (running the latest releases of iOS. I’ve reported this to Apple Beta Feedback Assistant but have not received a reply. I am not sure if this is a Sonos Issue or an Apple issue but wanted to post this to see what feedback I can get from Sonos.