I know it's a relatively new and unstable application but I figured if anyone has suffered through the issue and solved it then they can help me too.

So Anbox doesn't come pre-installed with Google play store and not even a Package Installer so only way to install applications is through Android Debug Bridge aka ADB

adb install /path/to/file.apk

would result in installing the application in Anbox. which worked for me for installing QuickPic and Snapseed

but it failed in installing Opera Mini and WPS Office giving the Following error

Input:

adb install /home/sumeet/Downloads/opera.apk

Output:

* daemon not running. starting it now on port 5037 *
* daemon started successfully *
30103 KB/s (4597754 bytes in 0.149s)
Failure [INSTALL_FAILED_NO_MATCHING_ABIS: Failed to extract native libraries, res=-113]

So my question is this, is it An Anbox problem, or Ubuntu Problem or ADB problem that can be fixed? and since it's essentially just an android emulator running on top of Linux, How can I fix this?