This.

The APK number looks impressive if you don't know some files are uncompressed on purpose: https://developer.android.com/tools/zipalign

There's also no mention that this likely breaks signatures? https://developer.android.com/tools/apksigner

The weird thing is that they say they worked on Signal ... so, what's going on?

Fun fact, having page-aligned uncompressed .so files in the APK allows the dynamic linker to mmap them directly out of the ZIP.