GNU/Linux CentOS Stream 9 Installing Android 9.0 Emulator Guide
How to Install Android 9.0 Pie Emulator Virtual Machine in GNU+Linux CentOS Stream 9 desktop – Step by step Tutorial.
And this is the easiest way to dispose for Free of a nicely performing Android 9.0 Emulator on CentOS for running & testing Android Apps on GNU/Linux.

Android 9.0 Emulator CentOS Stream 9 VirtualBox VM Setup