Please help me choose the right Kodi

Hi….Im currently using Jarvis 16.1 on a Minix that runs Kitkat.

My plan is to get a Nvidia Shield. I will of course be installing Kodi on it but there are some questions I have
so I get the best experience for my needs.

As you all know Shield TV runs Android TV and has limited apps to choose from.

Should I install Krypton from the google play store or side load it?
(I want to update Kodi manually and not have it update automatically, is to true that the play store version does the latter?)

2. Or am I better off installing an android-specific fork of Kodi?

Cheers