“Companion App “

Thank you for the best game in decades.
I want to use the companion app but i can’t. I got an Huawei Mate 9 – an expensive android Smartphone that was released in 2016/2017. If i want to install the app it says that my smartphone isnt compatible. Please find an solution for this.
And also one tipp. If i blow up an head with the shotgun in red dead on the ps4, there are sometimes pieces of the head that arent blown away, its like an graphical issue. Hope this feedback can help you!
With best regards
BiiigFoot