And the version of it most apps use doesn't even have enough eyes. The original text (and the updated since Unicode) has 10-eyed O, while most places display 7. Old Cyrillic texts are pretty wild.
I can see both your and the original hieroglyphics just fine on my phone using Firefox, and on windows with the same.
Odd thing is, my wife sometimes gets MY emoji and non-standard text as squares, and we have the exact same phone. The only difference between us is she uses the default keyboard.
For anyone else stumbling about this revelation:
It very well wouldn't be Unicode otherwise now, would it?
There's a reason linguists and computer scientists sometimes get mental breakdowns over emoji because the know that those same emoji were on the same agenda taking up actual time as discussions about which ancient language or newly discovered grapheme/symbol/lexicogram/whatever should be added first/next. (Not saying emoji aren't also tremendously important/good/what ever additions!!)