Other than one or two freebie games that either just don’t work anymore or have been pulled I can’t say I’ve experienced any issues where a tvOS update has broken any streaming apps I use.There are plenty of bugs, and many apps cannot run correctly because Apple is always breaking things with new tvOS releases. Philo TV is total rubbish now, and AcornTV is flaky, just to name two apps. You can drink as much Apple juice as you want, but that doesn't change the fact that tvOS is simply bad, and it is a moving target which app developers have to constantly make unnecessary changes for. Granted that app developers are having issues with their code, but they shouldn't have to spend so much time with each new tvOS release to patch up their code because Apple changes the way it works. Every OS from Apple is filled with bugs, the worst is iPadOS followed closely by tvOS, but they all have way more bugs than they should.
The only app issue I do see every now and then is with Prime as seems every time they update their app it breaks HDR on some shows for a few days. Where the fault lies with that one is anyones guess, but without specific facts yeah we could easily say it’s because of tvOS but equally could also argue it’s because Prime devs haven’t done a good job with the app either.
I mentioned earlier about the ATV App Library population issue that has been reported from those with large libraries, this past week I have noticed that issue myself but weirdly is only affecting my US account which isn’t very large at all compared to my UK account and that populates fine.
So is that a tvOS bug issue or a server issue or a mixture of both, but then why only the US and not the UK? 🤷🏻♂️