Disclaimer - I don't have an android box but have been looking at getting one.
In reading some reviews most seem to come with at least Android 9 - which is over 3 years old.
The example above appears to be only Android 6 - potentially is this an issue a few years down the road with app compatibility?
I have a Minix Neo U9-H which I bought years ago. I use it mainly to play media from my network, Youtube & BBC iPlayer, which it does very well. I wouldn't buy one now because of the potential issue you have highlighted. It can be flashed up to Nougat 7.1.2 but even that is a little old now.
https://theminixforum.com/index.php?threads/u9-h-ce-fw001-android-7-1-2-20191120-community-edition-nougat-firmware.2107/