How to increase number of supported devices when publishing to the google play store

There are a large number of unsupported devices, some that I have tested and can run the app just fine. I want to change whatever it is that is making Google's console / the play store think the game is not compatible with these devices.

I have tried looking through the Manifest, and everything seems fine. I am not sure what else to check, or change. I can't even find what is consistently causing a problem, I have spent a lot of time just comparing the supported and unsupported phones to try and diagnose why there are so many unsupported devices.

Thanks in advance.