I don't think that many phones support the idle mode I think Sony has one, Samsung only has a battery bypass when you're gaming. I think it's still a pretty rare feature but if you know something I don't please share

Yeah those are all huge. Camera app is pretty good important too.

I was trying to think of stuff beyond system apps but point taken

On this topic I wish there was a definitive place to find Android games that have controller support. No microtransactions.. I will have to download and try again first and then 90% of the time it doesn't meet my criteria for playable.