It was a mistake on my end to put as "libandroid". Renaming the package as "libandroid-stub" will better communicate it is a stub and works differently from "vulkan-loader-android".
Installing "libandroid-stub" can workaround issues like Termux libharfbuzz.so conflicting with Android libharfbuzz_ng.so at the expense of some Android features to not work (eg: mediacodec on ffmpeg).