Looks like the problems with phones occur due to epic games just made their games unavailable to lower versions of android so that the drivers aren’t getting fully tested on like 5 y.o devices. So whoever reads this post is my warning that you will likely face some issues with rendering on older the phones that can’t download Fortnite from play market. And the following is true that there are not to many mobile developers and studious to encourage epic to fix these issues.