"Remember last profile" now tells the truth
The switch under Settings → Advanced showed on by default while every launch
behaved as though it were off — straight to "Who's watching?". Two parts of
the app disagreed about what the default was.
Nothing changes about how your Apple TV behaves. What changes is that the switch
now shows the state it is actually in, and turning it on works.
If you had already set it, your choice is kept.
Syncing with Android TV
This setting was stored under a name Android TV does not use, so it was the one
preference that quietly failed to travel between the two apps. It now uses the
same name.
Housekeeping
Four settings that appeared in the code but could never do anything on Apple TV
have been removed — decoder priority, subtitle renderer choice, Dolby Vision
profile 7 handling and cache sizing. libmpv either has no such choice to make or
has no such problem to solve.