No control over updates. They happen invisibly, which means I have to relearn an app UI every few weeks, plus they're laggy in a lot of places. The phrase 'you get what you pay for' is relevant in this area. After a few years, they get 'unsupported' which goes so far as to have all apps stop working. Been there with a now paperweight Roku XD. Most 'unsupported' devices such as my Tab 2 10.1 from 2012 can still use Netflix, but the Roku XD for all intents and purposes is dead.
Sorry, but I don't play that consumerism game. I keep things for life. So far the only annoyance the Apple TVs have is the update screen. One wrong click and I'm relearning the whole thing again. I just spam the 'menu' remote button to skip past it during wakeup, and immediately force the screen saver on when I'm done. Sucks to not be able to pause though.
It'd just be nice to have peace of mind to just do what I want and not be bothered by anything. Especially unnecessary 'updates'. With my S20 FE I got just that--I can easily turn all updates and their nags off via NetGuard VPN and disabling unnecessary notifications.