It is one day shy of a week that I updated my HomePods to 15.3. (I have 6 OG HomePods and 6 Mini's). I had not experienced a popping noise on any of them prior to the initial 15 update.
I have to say, based on practically a week of playing the HomePods with the 15.3 update the overall system seems far more stable--more-so than it has ever been. I have not experienced any popping in any of the OG speakers (the Mini's never demonstrated this problem for me) since updating them on 1/25/22. I show no panic logs since then either. I have had several days in between where I have listened to them playing throughout the house for long periods of time without any glitches whatsoever. Indeed, surprisingly, they've worked as they are supposed to... I am absolutely shocked to be quite honest as over the year I've owned them I have been trained by the constant bugs to expect an exasperated moment several times a day or evening of having to fiddle with them to just simply work.
I have had several glitches, the worst which occurred today as illustrated below... but overall, this is the most stable update Apple has put out for these speakers, and best of all NO POPPING. HomeKit seems a little snappier as well, although still some issues...
1/27/22 - Dressing Room Mini didn’t resume playing with all the other HomePods and showed as “paused” in HomeKit. Resumed playing when I told Siri to also play in that room specifically.
1/27/22 - Both paired OG HomePods in the Living Room were silent although showed as playing in HomeKit. When requested to play, Siri reported “there is a problem with Apple Music” although all other speakers were playing sound.
1/28/22 - The Right paired OG speaker in the living room was silent although HomeKit reported it playing. Manually touching the top turned everything off but when touched again it started playing.
1/31/22 - Although HomeKit reported all speakers as playing, only the OG HomePods in my office and the Mini in the Hallway were actually making sound (although the lights on the tops of all were lit). When I asked Siri to stop playing the response was delayed and wouldn’t turn off, instead saying, “this is going a little too slow.” I was unable to get the speakers in the office to stop playing until I touched the top of the unit. I then manually restarted all speakers using HomeKit.
1/31/22 - Telling my office speaker to “play something I like everywhere” resulted in speakers everywhere else except for the office playing. When I told Siri to play in the office as well, the speaker responded, “now also playing in the office” but no sound was coming out even though HomeKit said it was playing. I again restarted them using HomeKit. When asked to play after the second start they began playing; however, it was observed there was a noticeable lag in beginning to do so—I could hear the other speakers begin playing throughout the house and the left speaker began playing after the right one did, and the office speakers showed greyed out (not playing) in HomeKit for about a minute before being noticed as playing by that app.