[rizu]

Which is now the best version to install on stock Fire TV Stick 4K ?

19.1. I don't know why you guys keep asking this. There's no current magic build being discussed in this thread.

There's a ton of complains on Matrix specifically among Android users. Yes, matrix has fixes that benefit FireTV if you want lossless audio but otherwise Leia users claim it's got way less frame skipping and other audio issues. I haven't done any comparison since my first FireTV build was on Matrix already.