I can’t recommend it for such a use case. There is no way to automatically start it unless somebody found a new workaround since the last time I tried it. (I hijacked the home button via a accessibility until they removed that possibility) Though it depends on your use case. It’s probably okay if you always have internet and never have the situation where you are offline and want to watch material from a USB stick or something like that or stream it from another home server. In that case fire TV would lock you out and tell you to fix your internet, but only settings are available and all apps are hidden.

This is incredibly annoying for series. Crunchyroll dropped Bleach, a series with over 350 episodes, when I was at episode ~100. A few years ago I started to manually keep track of the episodes I watched, since you lose your progress when they drop it (true for crunchyroll, prime and netflix)

Forcibly Leaked Open Source Software